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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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TI SoC clock updates for 4.17 merge window.
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJaoQvlAAoJEMr6vTF5UBoRqGkP/3zvjULaa3o4QzWI2i9MMUGB AajR0vTQBctc3KUXNmagsyE3x7l4UAQdSzalOahcjfnTRDruw65GQb9xFfEEmv42 iIcqrQS6qbex34bIPXMDHazUZxrMInGhYe96GaZH3UdFT0rSYfkG2UqMfoUK8nOY BeT7cuXlL4pJRSBjF7kTMxtXCxWI/sp0UwL+kz1uULVOQ4a7EpPdDdi760idNtaF Ss0npbhvfcem1H9F4aEJvaEcJ0ReXpwUZ6oXXgORm0jWZJu4y5mbgTXhHFWbu3ae e+NFvw4nbwAZZOQFym/5IpLD0iOo9DAKIyfYEkOVk9TB+NLTlpALnHcmHLQxpoRG c9vqCWXBxAjPvNQNgL7rXi3r+wPM4o63/KORi9ZHWxtEU236EBSv3MdoEyHm+Sgr kSFcuet+yy0sHg3mprr7VT0wvzU6A2h2+mQGMn6rowGyELpes5mSiFxFcxN5vvRk tDFK4+DZVVKLky+L/kHWjGWle9DRcRz1QR/tr8ibOS3Uuppqx/Sn7duHOabph/9y ZXS8yh2Kixcdip44mNa12D46xC7IKfC5n76eu6aAbJwJFVVyQc99LJ6mQHqtXLM6 12o5p99SY7POZcFWMiDU8Qv+sCyxSvaefaJ2eaDFw2Q7F8mdcQRf2EtOKGmuFxZj PEstJ4RKxwLfXYqkLb63 =fC5B -----END PGP SIGNATURE----- Merge tag 'ti-clk-for-4.17' of https://github.com/t-kristo/linux-pm into clk-ti Pull TI SoC clock updates for 4.17 from Tero Kristo: * tag 'ti-clk-for-4.17' of https://github.com/t-kristo/linux-pm: clk: keystone: sci-clk: add support for dynamically probing clocks clk: ti: add support for clock latching to mux clocks clk: ti: add support for clock latching to divider clocks clk: ti: add generic support for clock latching clk: ti: add support for register read-modify-write low-level operation dt-bindings: clock: ti: add latching support to mux and divider clocks
This commit is contained in:
commit
401fd20f1f
8 changed files with 170 additions and 299 deletions
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@ -75,6 +75,9 @@ Optional properties:
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- ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0,
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- ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0,
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see [2]
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see [2]
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- ti,set-rate-parent : clk_set_rate is propagated to parent
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- ti,set-rate-parent : clk_set_rate is propagated to parent
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- ti,latch-bit : latch the divider value to HW, only needed if the register
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access requires this. As an example dra76x DPLL_GMAC H14 divider implements
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such behavior.
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Examples:
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Examples:
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dpll_usb_m2_ck: dpll_usb_m2_ck@4a008190 {
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dpll_usb_m2_ck: dpll_usb_m2_ck@4a008190 {
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@ -48,6 +48,9 @@ Optional properties:
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zero
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zero
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- ti,set-rate-parent : clk_set_rate is propagated to parent clock,
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- ti,set-rate-parent : clk_set_rate is propagated to parent clock,
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not supported by the composite-mux-clock subtype
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not supported by the composite-mux-clock subtype
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- ti,latch-bit : latch the mux value to HW, only needed if the register
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access requires this. As an example, dra7x DPLL_GMAC H14 muxing
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implements such behavior.
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Examples:
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Examples:
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@ -28,22 +28,11 @@
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#define SCI_CLK_ALLOW_FREQ_CHANGE BIT(1)
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#define SCI_CLK_ALLOW_FREQ_CHANGE BIT(1)
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#define SCI_CLK_INPUT_TERMINATION BIT(2)
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#define SCI_CLK_INPUT_TERMINATION BIT(2)
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/**
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* struct sci_clk_data - TI SCI clock data
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* @dev: device index
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* @num_clks: number of clocks for this device
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*/
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struct sci_clk_data {
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u16 dev;
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u16 num_clks;
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};
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/**
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/**
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* struct sci_clk_provider - TI SCI clock provider representation
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* struct sci_clk_provider - TI SCI clock provider representation
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* @sci: Handle to the System Control Interface protocol handler
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* @sci: Handle to the System Control Interface protocol handler
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* @ops: Pointer to the SCI ops to be used by the clocks
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* @ops: Pointer to the SCI ops to be used by the clocks
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* @dev: Device pointer for the clock provider
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* @dev: Device pointer for the clock provider
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* @clk_data: Clock data
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* @clocks: Clocks array for this device
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* @clocks: Clocks array for this device
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* @num_clocks: Total number of clocks for this provider
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* @num_clocks: Total number of clocks for this provider
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*/
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*/
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@ -51,8 +40,7 @@ struct sci_clk_provider {
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const struct ti_sci_handle *sci;
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const struct ti_sci_handle *sci;
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const struct ti_sci_clk_ops *ops;
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const struct ti_sci_clk_ops *ops;
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struct device *dev;
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struct device *dev;
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const struct sci_clk_data *clk_data;
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struct sci_clk **clocks;
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struct clk_hw **clocks;
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int num_clocks;
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int num_clocks;
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};
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};
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@ -61,6 +49,7 @@ struct sci_clk_provider {
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* @hw: Hardware clock cookie for common clock framework
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* @hw: Hardware clock cookie for common clock framework
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* @dev_id: Device index
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* @dev_id: Device index
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* @clk_id: Clock index
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* @clk_id: Clock index
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* @num_parents: Number of parents for this clock
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* @provider: Master clock provider
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* @provider: Master clock provider
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* @flags: Flags for the clock
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* @flags: Flags for the clock
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*/
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*/
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@ -68,6 +57,7 @@ struct sci_clk {
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struct clk_hw hw;
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struct clk_hw hw;
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u16 dev_id;
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u16 dev_id;
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u8 clk_id;
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u8 clk_id;
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u8 num_parents;
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struct sci_clk_provider *provider;
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struct sci_clk_provider *provider;
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u8 flags;
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u8 flags;
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};
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};
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@ -273,38 +263,22 @@ static const struct clk_ops sci_clk_ops = {
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/**
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/**
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* _sci_clk_get - Gets a handle for an SCI clock
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* _sci_clk_get - Gets a handle for an SCI clock
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* @provider: Handle to SCI clock provider
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* @provider: Handle to SCI clock provider
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* @dev_id: device ID for the clock to register
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* @sci_clk: Handle to the SCI clock to populate
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* @clk_id: clock ID for the clock to register
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*
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*
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* Gets a handle to an existing TI SCI hw clock, or builds a new clock
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* Gets a handle to an existing TI SCI hw clock, or builds a new clock
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* entry and registers it with the common clock framework. Called from
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* entry and registers it with the common clock framework. Called from
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* the common clock framework, when a corresponding of_clk_get call is
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* the common clock framework, when a corresponding of_clk_get call is
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* executed, or recursively from itself when parsing parent clocks.
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* executed, or recursively from itself when parsing parent clocks.
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* Returns a pointer to the hw clock struct, or ERR_PTR value in failure.
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* Returns 0 on success, negative error code on failure.
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*/
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*/
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static struct clk_hw *_sci_clk_build(struct sci_clk_provider *provider,
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static int _sci_clk_build(struct sci_clk_provider *provider,
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u16 dev_id, u8 clk_id)
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struct sci_clk *sci_clk)
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{
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{
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struct clk_init_data init = { NULL };
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struct clk_init_data init = { NULL };
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struct sci_clk *sci_clk = NULL;
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char *name = NULL;
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char *name = NULL;
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char **parent_names = NULL;
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char **parent_names = NULL;
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int i;
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int i;
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int ret;
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int ret = 0;
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sci_clk = devm_kzalloc(provider->dev, sizeof(*sci_clk), GFP_KERNEL);
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if (!sci_clk)
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return ERR_PTR(-ENOMEM);
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sci_clk->dev_id = dev_id;
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sci_clk->clk_id = clk_id;
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sci_clk->provider = provider;
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ret = provider->ops->get_num_parents(provider->sci, dev_id,
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clk_id,
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&init.num_parents);
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if (ret)
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goto err;
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name = kasprintf(GFP_KERNEL, "%s:%d:%d", dev_name(provider->dev),
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name = kasprintf(GFP_KERNEL, "%s:%d:%d", dev_name(provider->dev),
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sci_clk->dev_id, sci_clk->clk_id);
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sci_clk->dev_id, sci_clk->clk_id);
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@ -317,11 +291,11 @@ static struct clk_hw *_sci_clk_build(struct sci_clk_provider *provider,
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* to have mux functionality. Otherwise it is going to act as a root
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* to have mux functionality. Otherwise it is going to act as a root
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* clock.
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* clock.
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*/
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*/
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if (init.num_parents < 2)
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if (sci_clk->num_parents < 2)
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init.num_parents = 0;
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sci_clk->num_parents = 0;
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if (init.num_parents) {
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if (sci_clk->num_parents) {
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parent_names = kcalloc(init.num_parents, sizeof(char *),
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parent_names = kcalloc(sci_clk->num_parents, sizeof(char *),
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GFP_KERNEL);
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GFP_KERNEL);
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if (!parent_names) {
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if (!parent_names) {
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@ -329,7 +303,7 @@ static struct clk_hw *_sci_clk_build(struct sci_clk_provider *provider,
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goto err;
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goto err;
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}
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}
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for (i = 0; i < init.num_parents; i++) {
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for (i = 0; i < sci_clk->num_parents; i++) {
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char *parent_name;
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char *parent_name;
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parent_name = kasprintf(GFP_KERNEL, "%s:%d:%d",
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parent_name = kasprintf(GFP_KERNEL, "%s:%d:%d",
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@ -346,6 +320,7 @@ static struct clk_hw *_sci_clk_build(struct sci_clk_provider *provider,
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}
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}
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init.ops = &sci_clk_ops;
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init.ops = &sci_clk_ops;
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init.num_parents = sci_clk->num_parents;
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sci_clk->hw.init = &init;
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sci_clk->hw.init = &init;
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ret = devm_clk_hw_register(provider->dev, &sci_clk->hw);
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ret = devm_clk_hw_register(provider->dev, &sci_clk->hw);
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@ -354,7 +329,7 @@ static struct clk_hw *_sci_clk_build(struct sci_clk_provider *provider,
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err:
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err:
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if (parent_names) {
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if (parent_names) {
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for (i = 0; i < init.num_parents; i++)
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for (i = 0; i < sci_clk->num_parents; i++)
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kfree(parent_names[i]);
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kfree(parent_names[i]);
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kfree(parent_names);
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kfree(parent_names);
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@ -362,10 +337,7 @@ static struct clk_hw *_sci_clk_build(struct sci_clk_provider *provider,
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kfree(name);
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kfree(name);
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if (ret)
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return ret;
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return ERR_PTR(ret);
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return &sci_clk->hw;
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}
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}
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static int _cmp_sci_clk(const void *a, const void *b)
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static int _cmp_sci_clk(const void *a, const void *b)
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@ -414,253 +386,20 @@ static struct clk_hw *sci_clk_get(struct of_phandle_args *clkspec, void *data)
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static int ti_sci_init_clocks(struct sci_clk_provider *p)
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static int ti_sci_init_clocks(struct sci_clk_provider *p)
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{
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{
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const struct sci_clk_data *data = p->clk_data;
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struct clk_hw *hw;
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int i;
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int i;
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int num_clks = 0;
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int ret;
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while (data->num_clks) {
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for (i = 0; i < p->num_clocks; i++) {
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num_clks += data->num_clks;
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ret = _sci_clk_build(p, p->clocks[i]);
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data++;
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if (ret)
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}
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return ret;
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p->num_clocks = num_clks;
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p->clocks = devm_kcalloc(p->dev, num_clks, sizeof(struct sci_clk),
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GFP_KERNEL);
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if (!p->clocks)
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return -ENOMEM;
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num_clks = 0;
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data = p->clk_data;
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while (data->num_clks) {
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for (i = 0; i < data->num_clks; i++) {
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hw = _sci_clk_build(p, data->dev, i);
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if (!IS_ERR(hw)) {
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p->clocks[num_clks++] = hw;
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continue;
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}
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/* Skip any holes in the clock lists */
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if (PTR_ERR(hw) == -ENODEV)
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continue;
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return PTR_ERR(hw);
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}
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data++;
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}
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}
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return 0;
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return 0;
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}
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}
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static const struct sci_clk_data k2g_clk_data[] = {
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/* pmmc */
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{ .dev = 0x0, .num_clks = 4 },
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/* mlb0 */
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{ .dev = 0x1, .num_clks = 5 },
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/* dss0 */
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{ .dev = 0x2, .num_clks = 2 },
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/* mcbsp0 */
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{ .dev = 0x3, .num_clks = 8 },
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/* mcasp0 */
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{ .dev = 0x4, .num_clks = 8 },
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/* mcasp1 */
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{ .dev = 0x5, .num_clks = 8 },
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/* mcasp2 */
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{ .dev = 0x6, .num_clks = 8 },
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||||||
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||||||
/* dcan0 */
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{ .dev = 0x8, .num_clks = 2 },
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||||||
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||||||
/* dcan1 */
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||||||
{ .dev = 0x9, .num_clks = 2 },
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||||||
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||||||
/* emif0 */
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|
||||||
{ .dev = 0xa, .num_clks = 6 },
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|
||||||
|
|
||||||
/* mmchs0 */
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|
||||||
{ .dev = 0xb, .num_clks = 3 },
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|
||||||
|
|
||||||
/* mmchs1 */
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||||||
{ .dev = 0xc, .num_clks = 3 },
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|
||||||
|
|
||||||
/* gpmc0 */
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|
||||||
{ .dev = 0xd, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* elm0 */
|
|
||||||
{ .dev = 0xe, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* spi0 */
|
|
||||||
{ .dev = 0x10, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* spi1 */
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|
||||||
{ .dev = 0x11, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* spi2 */
|
|
||||||
{ .dev = 0x12, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* spi3 */
|
|
||||||
{ .dev = 0x13, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* icss0 */
|
|
||||||
{ .dev = 0x14, .num_clks = 6 },
|
|
||||||
|
|
||||||
/* icss1 */
|
|
||||||
{ .dev = 0x15, .num_clks = 6 },
|
|
||||||
|
|
||||||
/* usb0 */
|
|
||||||
{ .dev = 0x16, .num_clks = 7 },
|
|
||||||
|
|
||||||
/* usb1 */
|
|
||||||
{ .dev = 0x17, .num_clks = 7 },
|
|
||||||
|
|
||||||
/* nss0 */
|
|
||||||
{ .dev = 0x18, .num_clks = 14 },
|
|
||||||
|
|
||||||
/* pcie0 */
|
|
||||||
{ .dev = 0x19, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* gpio0 */
|
|
||||||
{ .dev = 0x1b, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* gpio1 */
|
|
||||||
{ .dev = 0x1c, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* timer64_0 */
|
|
||||||
{ .dev = 0x1d, .num_clks = 9 },
|
|
||||||
|
|
||||||
/* timer64_1 */
|
|
||||||
{ .dev = 0x1e, .num_clks = 9 },
|
|
||||||
|
|
||||||
/* timer64_2 */
|
|
||||||
{ .dev = 0x1f, .num_clks = 9 },
|
|
||||||
|
|
||||||
/* timer64_3 */
|
|
||||||
{ .dev = 0x20, .num_clks = 9 },
|
|
||||||
|
|
||||||
/* timer64_4 */
|
|
||||||
{ .dev = 0x21, .num_clks = 9 },
|
|
||||||
|
|
||||||
/* timer64_5 */
|
|
||||||
{ .dev = 0x22, .num_clks = 9 },
|
|
||||||
|
|
||||||
/* timer64_6 */
|
|
||||||
{ .dev = 0x23, .num_clks = 9 },
|
|
||||||
|
|
||||||
/* msgmgr0 */
|
|
||||||
{ .dev = 0x25, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* bootcfg0 */
|
|
||||||
{ .dev = 0x26, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* arm_bootrom0 */
|
|
||||||
{ .dev = 0x27, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* dsp_bootrom0 */
|
|
||||||
{ .dev = 0x29, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* debugss0 */
|
|
||||||
{ .dev = 0x2b, .num_clks = 8 },
|
|
||||||
|
|
||||||
/* uart0 */
|
|
||||||
{ .dev = 0x2c, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* uart1 */
|
|
||||||
{ .dev = 0x2d, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* uart2 */
|
|
||||||
{ .dev = 0x2e, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ehrpwm0 */
|
|
||||||
{ .dev = 0x2f, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ehrpwm1 */
|
|
||||||
{ .dev = 0x30, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ehrpwm2 */
|
|
||||||
{ .dev = 0x31, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ehrpwm3 */
|
|
||||||
{ .dev = 0x32, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ehrpwm4 */
|
|
||||||
{ .dev = 0x33, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ehrpwm5 */
|
|
||||||
{ .dev = 0x34, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* eqep0 */
|
|
||||||
{ .dev = 0x35, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* eqep1 */
|
|
||||||
{ .dev = 0x36, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* eqep2 */
|
|
||||||
{ .dev = 0x37, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ecap0 */
|
|
||||||
{ .dev = 0x38, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* ecap1 */
|
|
||||||
{ .dev = 0x39, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* i2c0 */
|
|
||||||
{ .dev = 0x3a, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* i2c1 */
|
|
||||||
{ .dev = 0x3b, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* i2c2 */
|
|
||||||
{ .dev = 0x3c, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* edma0 */
|
|
||||||
{ .dev = 0x3f, .num_clks = 2 },
|
|
||||||
|
|
||||||
/* semaphore0 */
|
|
||||||
{ .dev = 0x40, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* intc0 */
|
|
||||||
{ .dev = 0x41, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* gic0 */
|
|
||||||
{ .dev = 0x42, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* qspi0 */
|
|
||||||
{ .dev = 0x43, .num_clks = 5 },
|
|
||||||
|
|
||||||
/* arm_64b_counter0 */
|
|
||||||
{ .dev = 0x44, .num_clks = 2 },
|
|
||||||
|
|
||||||
/* tetris0 */
|
|
||||||
{ .dev = 0x45, .num_clks = 2 },
|
|
||||||
|
|
||||||
/* cgem0 */
|
|
||||||
{ .dev = 0x46, .num_clks = 2 },
|
|
||||||
|
|
||||||
/* msmc0 */
|
|
||||||
{ .dev = 0x47, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* cbass0 */
|
|
||||||
{ .dev = 0x49, .num_clks = 1 },
|
|
||||||
|
|
||||||
/* board0 */
|
|
||||||
{ .dev = 0x4c, .num_clks = 36 },
|
|
||||||
|
|
||||||
/* edma1 */
|
|
||||||
{ .dev = 0x4f, .num_clks = 2 },
|
|
||||||
{ .num_clks = 0 },
|
|
||||||
};
|
|
||||||
|
|
||||||
static const struct of_device_id ti_sci_clk_of_match[] = {
|
static const struct of_device_id ti_sci_clk_of_match[] = {
|
||||||
{ .compatible = "ti,k2g-sci-clk", .data = &k2g_clk_data },
|
{ .compatible = "ti,k2g-sci-clk" },
|
||||||
{ /* Sentinel */ },
|
{ /* Sentinel */ },
|
||||||
};
|
};
|
||||||
MODULE_DEVICE_TABLE(of, ti_sci_clk_of_match);
|
MODULE_DEVICE_TABLE(of, ti_sci_clk_of_match);
|
||||||
|
@ -681,12 +420,16 @@ static int ti_sci_clk_probe(struct platform_device *pdev)
|
||||||
struct device_node *np = dev->of_node;
|
struct device_node *np = dev->of_node;
|
||||||
struct sci_clk_provider *provider;
|
struct sci_clk_provider *provider;
|
||||||
const struct ti_sci_handle *handle;
|
const struct ti_sci_handle *handle;
|
||||||
const struct sci_clk_data *data;
|
|
||||||
int ret;
|
int ret;
|
||||||
|
int num_clks = 0;
|
||||||
data = of_device_get_match_data(dev);
|
struct sci_clk **clks = NULL;
|
||||||
if (!data)
|
struct sci_clk **tmp_clks;
|
||||||
return -EINVAL;
|
struct sci_clk *sci_clk;
|
||||||
|
int max_clks = 0;
|
||||||
|
int clk_id = 0;
|
||||||
|
int dev_id = 0;
|
||||||
|
u8 num_parents;
|
||||||
|
int gap_size = 0;
|
||||||
|
|
||||||
handle = devm_ti_sci_get_handle(dev);
|
handle = devm_ti_sci_get_handle(dev);
|
||||||
if (IS_ERR(handle))
|
if (IS_ERR(handle))
|
||||||
|
@ -696,12 +439,69 @@ static int ti_sci_clk_probe(struct platform_device *pdev)
|
||||||
if (!provider)
|
if (!provider)
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
|
|
||||||
provider->clk_data = data;
|
|
||||||
|
|
||||||
provider->sci = handle;
|
provider->sci = handle;
|
||||||
provider->ops = &handle->ops.clk_ops;
|
provider->ops = &handle->ops.clk_ops;
|
||||||
provider->dev = dev;
|
provider->dev = dev;
|
||||||
|
|
||||||
|
while (1) {
|
||||||
|
ret = provider->ops->get_num_parents(provider->sci, dev_id,
|
||||||
|
clk_id, &num_parents);
|
||||||
|
if (ret) {
|
||||||
|
gap_size++;
|
||||||
|
if (!clk_id) {
|
||||||
|
if (gap_size >= 5)
|
||||||
|
break;
|
||||||
|
dev_id++;
|
||||||
|
} else {
|
||||||
|
if (gap_size >= 2) {
|
||||||
|
dev_id++;
|
||||||
|
clk_id = 0;
|
||||||
|
gap_size = 0;
|
||||||
|
} else {
|
||||||
|
clk_id++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
gap_size = 0;
|
||||||
|
|
||||||
|
if (num_clks == max_clks) {
|
||||||
|
tmp_clks = devm_kmalloc_array(dev, max_clks + 64,
|
||||||
|
sizeof(sci_clk),
|
||||||
|
GFP_KERNEL);
|
||||||
|
memcpy(tmp_clks, clks, max_clks * sizeof(sci_clk));
|
||||||
|
if (max_clks)
|
||||||
|
devm_kfree(dev, clks);
|
||||||
|
max_clks += 64;
|
||||||
|
clks = tmp_clks;
|
||||||
|
}
|
||||||
|
|
||||||
|
sci_clk = devm_kzalloc(dev, sizeof(*sci_clk), GFP_KERNEL);
|
||||||
|
if (!sci_clk)
|
||||||
|
return -ENOMEM;
|
||||||
|
sci_clk->dev_id = dev_id;
|
||||||
|
sci_clk->clk_id = clk_id;
|
||||||
|
sci_clk->provider = provider;
|
||||||
|
sci_clk->num_parents = num_parents;
|
||||||
|
|
||||||
|
clks[num_clks] = sci_clk;
|
||||||
|
|
||||||
|
clk_id++;
|
||||||
|
num_clks++;
|
||||||
|
}
|
||||||
|
|
||||||
|
provider->clocks = devm_kmalloc_array(dev, num_clks, sizeof(sci_clk),
|
||||||
|
GFP_KERNEL);
|
||||||
|
if (!provider->clocks)
|
||||||
|
return -ENOMEM;
|
||||||
|
|
||||||
|
memcpy(provider->clocks, clks, num_clks * sizeof(sci_clk));
|
||||||
|
|
||||||
|
provider->num_clocks = num_clks;
|
||||||
|
|
||||||
|
devm_kfree(dev, clks);
|
||||||
|
|
||||||
ret = ti_sci_init_clocks(provider);
|
ret = ti_sci_init_clocks(provider);
|
||||||
if (ret) {
|
if (ret) {
|
||||||
pr_err("ti-sci-init-clocks failed.\n");
|
pr_err("ti-sci-init-clocks failed.\n");
|
||||||
|
|
|
@ -55,6 +55,29 @@ static void clk_memmap_writel(u32 val, const struct clk_omap_reg *reg)
|
||||||
writel_relaxed(val, io->mem + reg->offset);
|
writel_relaxed(val, io->mem + reg->offset);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static void _clk_rmw(u32 val, u32 mask, void __iomem *ptr)
|
||||||
|
{
|
||||||
|
u32 v;
|
||||||
|
|
||||||
|
v = readl_relaxed(ptr);
|
||||||
|
v &= ~mask;
|
||||||
|
v |= val;
|
||||||
|
writel_relaxed(v, ptr);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void clk_memmap_rmw(u32 val, u32 mask, const struct clk_omap_reg *reg)
|
||||||
|
{
|
||||||
|
struct clk_iomap *io = clk_memmaps[reg->index];
|
||||||
|
|
||||||
|
if (reg->ptr) {
|
||||||
|
_clk_rmw(val, mask, reg->ptr);
|
||||||
|
} else if (io->regmap) {
|
||||||
|
regmap_update_bits(io->regmap, reg->offset, mask, val);
|
||||||
|
} else {
|
||||||
|
_clk_rmw(val, mask, io->mem + reg->offset);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
static u32 clk_memmap_readl(const struct clk_omap_reg *reg)
|
static u32 clk_memmap_readl(const struct clk_omap_reg *reg)
|
||||||
{
|
{
|
||||||
u32 val;
|
u32 val;
|
||||||
|
@ -89,6 +112,7 @@ int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops)
|
||||||
ti_clk_ll_ops = ops;
|
ti_clk_ll_ops = ops;
|
||||||
ops->clk_readl = clk_memmap_readl;
|
ops->clk_readl = clk_memmap_readl;
|
||||||
ops->clk_writel = clk_memmap_writel;
|
ops->clk_writel = clk_memmap_writel;
|
||||||
|
ops->clk_rmw = clk_memmap_rmw;
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
@ -251,6 +275,20 @@ int ti_clk_get_reg_addr(struct device_node *node, int index,
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
void ti_clk_latch(struct clk_omap_reg *reg, s8 shift)
|
||||||
|
{
|
||||||
|
u32 latch;
|
||||||
|
|
||||||
|
if (shift < 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
latch = 1 << shift;
|
||||||
|
|
||||||
|
ti_clk_ll_ops->clk_rmw(latch, latch, reg);
|
||||||
|
ti_clk_ll_ops->clk_rmw(0, latch, reg);
|
||||||
|
ti_clk_ll_ops->clk_readl(reg); /* OCP barrier */
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* omap2_clk_provider_init - init master clock provider
|
* omap2_clk_provider_init - init master clock provider
|
||||||
* @parent: master node
|
* @parent: master node
|
||||||
|
|
|
@ -22,6 +22,7 @@ struct clk_omap_divider {
|
||||||
u8 shift;
|
u8 shift;
|
||||||
u8 width;
|
u8 width;
|
||||||
u8 flags;
|
u8 flags;
|
||||||
|
s8 latch;
|
||||||
const struct clk_div_table *table;
|
const struct clk_div_table *table;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
@ -33,6 +34,7 @@ struct clk_omap_mux {
|
||||||
u32 *table;
|
u32 *table;
|
||||||
u32 mask;
|
u32 mask;
|
||||||
u8 shift;
|
u8 shift;
|
||||||
|
s8 latch;
|
||||||
u8 flags;
|
u8 flags;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
@ -194,6 +196,8 @@ struct clk *ti_clk_register(struct device *dev, struct clk_hw *hw,
|
||||||
int ti_clk_add_alias(struct device *dev, struct clk *clk, const char *con);
|
int ti_clk_add_alias(struct device *dev, struct clk *clk, const char *con);
|
||||||
void ti_clk_add_aliases(void);
|
void ti_clk_add_aliases(void);
|
||||||
|
|
||||||
|
void ti_clk_latch(struct clk_omap_reg *reg, s8 shift);
|
||||||
|
|
||||||
struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup);
|
struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup);
|
||||||
|
|
||||||
int ti_clk_parse_divider_data(int *div_table, int num_dividers, int max_div,
|
int ti_clk_parse_divider_data(int *div_table, int num_dividers, int max_div,
|
||||||
|
|
|
@ -263,6 +263,8 @@ static int ti_clk_divider_set_rate(struct clk_hw *hw, unsigned long rate,
|
||||||
val |= value << divider->shift;
|
val |= value << divider->shift;
|
||||||
ti_clk_ll_ops->clk_writel(val, ÷r->reg);
|
ti_clk_ll_ops->clk_writel(val, ÷r->reg);
|
||||||
|
|
||||||
|
ti_clk_latch(÷r->reg, divider->latch);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -276,7 +278,8 @@ static struct clk *_register_divider(struct device *dev, const char *name,
|
||||||
const char *parent_name,
|
const char *parent_name,
|
||||||
unsigned long flags,
|
unsigned long flags,
|
||||||
struct clk_omap_reg *reg,
|
struct clk_omap_reg *reg,
|
||||||
u8 shift, u8 width, u8 clk_divider_flags,
|
u8 shift, u8 width, s8 latch,
|
||||||
|
u8 clk_divider_flags,
|
||||||
const struct clk_div_table *table)
|
const struct clk_div_table *table)
|
||||||
{
|
{
|
||||||
struct clk_omap_divider *div;
|
struct clk_omap_divider *div;
|
||||||
|
@ -305,6 +308,7 @@ static struct clk *_register_divider(struct device *dev, const char *name,
|
||||||
memcpy(&div->reg, reg, sizeof(*reg));
|
memcpy(&div->reg, reg, sizeof(*reg));
|
||||||
div->shift = shift;
|
div->shift = shift;
|
||||||
div->width = width;
|
div->width = width;
|
||||||
|
div->latch = latch;
|
||||||
div->flags = clk_divider_flags;
|
div->flags = clk_divider_flags;
|
||||||
div->hw.init = &init;
|
div->hw.init = &init;
|
||||||
div->table = table;
|
div->table = table;
|
||||||
|
@ -420,6 +424,7 @@ struct clk_hw *ti_clk_build_component_div(struct ti_clk_divider *setup)
|
||||||
div->table = _get_div_table_from_setup(setup, &div->width);
|
div->table = _get_div_table_from_setup(setup, &div->width);
|
||||||
|
|
||||||
div->shift = setup->bit_shift;
|
div->shift = setup->bit_shift;
|
||||||
|
div->latch = -EINVAL;
|
||||||
|
|
||||||
return &div->hw;
|
return &div->hw;
|
||||||
}
|
}
|
||||||
|
@ -452,7 +457,7 @@ struct clk *ti_clk_register_divider(struct ti_clk *setup)
|
||||||
|
|
||||||
clk = _register_divider(NULL, setup->name, div->parent,
|
clk = _register_divider(NULL, setup->name, div->parent,
|
||||||
flags, ®, div->bit_shift,
|
flags, ®, div->bit_shift,
|
||||||
width, div_flags, table);
|
width, -EINVAL, div_flags, table);
|
||||||
|
|
||||||
if (IS_ERR(clk))
|
if (IS_ERR(clk))
|
||||||
kfree(table);
|
kfree(table);
|
||||||
|
@ -556,7 +561,7 @@ static int _get_divider_width(struct device_node *node,
|
||||||
|
|
||||||
static int __init ti_clk_divider_populate(struct device_node *node,
|
static int __init ti_clk_divider_populate(struct device_node *node,
|
||||||
struct clk_omap_reg *reg, const struct clk_div_table **table,
|
struct clk_omap_reg *reg, const struct clk_div_table **table,
|
||||||
u32 *flags, u8 *div_flags, u8 *width, u8 *shift)
|
u32 *flags, u8 *div_flags, u8 *width, u8 *shift, s8 *latch)
|
||||||
{
|
{
|
||||||
u32 val;
|
u32 val;
|
||||||
int ret;
|
int ret;
|
||||||
|
@ -570,6 +575,13 @@ static int __init ti_clk_divider_populate(struct device_node *node,
|
||||||
else
|
else
|
||||||
*shift = 0;
|
*shift = 0;
|
||||||
|
|
||||||
|
if (latch) {
|
||||||
|
if (!of_property_read_u32(node, "ti,latch-bit", &val))
|
||||||
|
*latch = val;
|
||||||
|
else
|
||||||
|
*latch = -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
*flags = 0;
|
*flags = 0;
|
||||||
*div_flags = 0;
|
*div_flags = 0;
|
||||||
|
|
||||||
|
@ -606,17 +618,18 @@ static void __init of_ti_divider_clk_setup(struct device_node *node)
|
||||||
u8 clk_divider_flags = 0;
|
u8 clk_divider_flags = 0;
|
||||||
u8 width = 0;
|
u8 width = 0;
|
||||||
u8 shift = 0;
|
u8 shift = 0;
|
||||||
|
s8 latch = -EINVAL;
|
||||||
const struct clk_div_table *table = NULL;
|
const struct clk_div_table *table = NULL;
|
||||||
u32 flags = 0;
|
u32 flags = 0;
|
||||||
|
|
||||||
parent_name = of_clk_get_parent_name(node, 0);
|
parent_name = of_clk_get_parent_name(node, 0);
|
||||||
|
|
||||||
if (ti_clk_divider_populate(node, ®, &table, &flags,
|
if (ti_clk_divider_populate(node, ®, &table, &flags,
|
||||||
&clk_divider_flags, &width, &shift))
|
&clk_divider_flags, &width, &shift, &latch))
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
|
|
||||||
clk = _register_divider(NULL, node->name, parent_name, flags, ®,
|
clk = _register_divider(NULL, node->name, parent_name, flags, ®,
|
||||||
shift, width, clk_divider_flags, table);
|
shift, width, latch, clk_divider_flags, table);
|
||||||
|
|
||||||
if (!IS_ERR(clk)) {
|
if (!IS_ERR(clk)) {
|
||||||
of_clk_add_provider(node, of_clk_src_simple_get, clk);
|
of_clk_add_provider(node, of_clk_src_simple_get, clk);
|
||||||
|
@ -639,7 +652,8 @@ static void __init of_ti_composite_divider_clk_setup(struct device_node *node)
|
||||||
return;
|
return;
|
||||||
|
|
||||||
if (ti_clk_divider_populate(node, &div->reg, &div->table, &val,
|
if (ti_clk_divider_populate(node, &div->reg, &div->table, &val,
|
||||||
&div->flags, &div->width, &div->shift) < 0)
|
&div->flags, &div->width, &div->shift,
|
||||||
|
NULL) < 0)
|
||||||
goto cleanup;
|
goto cleanup;
|
||||||
|
|
||||||
if (!ti_clk_add_component(node, &div->hw, CLK_COMPONENT_TYPE_DIVIDER))
|
if (!ti_clk_add_component(node, &div->hw, CLK_COMPONENT_TYPE_DIVIDER))
|
||||||
|
|
|
@ -86,6 +86,7 @@ static int ti_clk_mux_set_parent(struct clk_hw *hw, u8 index)
|
||||||
}
|
}
|
||||||
val |= index << mux->shift;
|
val |= index << mux->shift;
|
||||||
ti_clk_ll_ops->clk_writel(val, &mux->reg);
|
ti_clk_ll_ops->clk_writel(val, &mux->reg);
|
||||||
|
ti_clk_latch(&mux->reg, mux->latch);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
@ -100,7 +101,7 @@ static struct clk *_register_mux(struct device *dev, const char *name,
|
||||||
const char * const *parent_names,
|
const char * const *parent_names,
|
||||||
u8 num_parents, unsigned long flags,
|
u8 num_parents, unsigned long flags,
|
||||||
struct clk_omap_reg *reg, u8 shift, u32 mask,
|
struct clk_omap_reg *reg, u8 shift, u32 mask,
|
||||||
u8 clk_mux_flags, u32 *table)
|
s8 latch, u8 clk_mux_flags, u32 *table)
|
||||||
{
|
{
|
||||||
struct clk_omap_mux *mux;
|
struct clk_omap_mux *mux;
|
||||||
struct clk *clk;
|
struct clk *clk;
|
||||||
|
@ -121,6 +122,7 @@ static struct clk *_register_mux(struct device *dev, const char *name,
|
||||||
memcpy(&mux->reg, reg, sizeof(*reg));
|
memcpy(&mux->reg, reg, sizeof(*reg));
|
||||||
mux->shift = shift;
|
mux->shift = shift;
|
||||||
mux->mask = mask;
|
mux->mask = mask;
|
||||||
|
mux->latch = latch;
|
||||||
mux->flags = clk_mux_flags;
|
mux->flags = clk_mux_flags;
|
||||||
mux->table = table;
|
mux->table = table;
|
||||||
mux->hw.init = &init;
|
mux->hw.init = &init;
|
||||||
|
@ -160,7 +162,7 @@ struct clk *ti_clk_register_mux(struct ti_clk *setup)
|
||||||
flags |= CLK_SET_RATE_PARENT;
|
flags |= CLK_SET_RATE_PARENT;
|
||||||
|
|
||||||
return _register_mux(NULL, setup->name, mux->parents, mux->num_parents,
|
return _register_mux(NULL, setup->name, mux->parents, mux->num_parents,
|
||||||
flags, ®, mux->bit_shift, mask,
|
flags, ®, mux->bit_shift, mask, -EINVAL,
|
||||||
mux_flags, NULL);
|
mux_flags, NULL);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -179,6 +181,7 @@ static void of_mux_clk_setup(struct device_node *node)
|
||||||
u8 clk_mux_flags = 0;
|
u8 clk_mux_flags = 0;
|
||||||
u32 mask = 0;
|
u32 mask = 0;
|
||||||
u32 shift = 0;
|
u32 shift = 0;
|
||||||
|
s32 latch = -EINVAL;
|
||||||
u32 flags = CLK_SET_RATE_NO_REPARENT;
|
u32 flags = CLK_SET_RATE_NO_REPARENT;
|
||||||
|
|
||||||
num_parents = of_clk_get_parent_count(node);
|
num_parents = of_clk_get_parent_count(node);
|
||||||
|
@ -197,6 +200,8 @@ static void of_mux_clk_setup(struct device_node *node)
|
||||||
|
|
||||||
of_property_read_u32(node, "ti,bit-shift", &shift);
|
of_property_read_u32(node, "ti,bit-shift", &shift);
|
||||||
|
|
||||||
|
of_property_read_u32(node, "ti,latch-bit", &latch);
|
||||||
|
|
||||||
if (of_property_read_bool(node, "ti,index-starts-at-one"))
|
if (of_property_read_bool(node, "ti,index-starts-at-one"))
|
||||||
clk_mux_flags |= CLK_MUX_INDEX_ONE;
|
clk_mux_flags |= CLK_MUX_INDEX_ONE;
|
||||||
|
|
||||||
|
@ -211,7 +216,8 @@ static void of_mux_clk_setup(struct device_node *node)
|
||||||
mask = (1 << fls(mask)) - 1;
|
mask = (1 << fls(mask)) - 1;
|
||||||
|
|
||||||
clk = _register_mux(NULL, node->name, parent_names, num_parents,
|
clk = _register_mux(NULL, node->name, parent_names, num_parents,
|
||||||
flags, ®, shift, mask, clk_mux_flags, NULL);
|
flags, ®, shift, mask, latch, clk_mux_flags,
|
||||||
|
NULL);
|
||||||
|
|
||||||
if (!IS_ERR(clk))
|
if (!IS_ERR(clk))
|
||||||
of_clk_add_provider(node, of_clk_src_simple_get, clk);
|
of_clk_add_provider(node, of_clk_src_simple_get, clk);
|
||||||
|
@ -234,6 +240,7 @@ struct clk_hw *ti_clk_build_component_mux(struct ti_clk_mux *setup)
|
||||||
return ERR_PTR(-ENOMEM);
|
return ERR_PTR(-ENOMEM);
|
||||||
|
|
||||||
mux->shift = setup->bit_shift;
|
mux->shift = setup->bit_shift;
|
||||||
|
mux->latch = -EINVAL;
|
||||||
|
|
||||||
mux->reg.index = setup->module;
|
mux->reg.index = setup->module;
|
||||||
mux->reg.offset = setup->reg;
|
mux->reg.offset = setup->reg;
|
||||||
|
|
|
@ -211,6 +211,7 @@ enum {
|
||||||
* struct ti_clk_ll_ops - low-level ops for clocks
|
* struct ti_clk_ll_ops - low-level ops for clocks
|
||||||
* @clk_readl: pointer to register read function
|
* @clk_readl: pointer to register read function
|
||||||
* @clk_writel: pointer to register write function
|
* @clk_writel: pointer to register write function
|
||||||
|
* @clk_rmw: pointer to register read-modify-write function
|
||||||
* @clkdm_clk_enable: pointer to clockdomain enable function
|
* @clkdm_clk_enable: pointer to clockdomain enable function
|
||||||
* @clkdm_clk_disable: pointer to clockdomain disable function
|
* @clkdm_clk_disable: pointer to clockdomain disable function
|
||||||
* @clkdm_lookup: pointer to clockdomain lookup function
|
* @clkdm_lookup: pointer to clockdomain lookup function
|
||||||
|
@ -226,6 +227,7 @@ enum {
|
||||||
struct ti_clk_ll_ops {
|
struct ti_clk_ll_ops {
|
||||||
u32 (*clk_readl)(const struct clk_omap_reg *reg);
|
u32 (*clk_readl)(const struct clk_omap_reg *reg);
|
||||||
void (*clk_writel)(u32 val, const struct clk_omap_reg *reg);
|
void (*clk_writel)(u32 val, const struct clk_omap_reg *reg);
|
||||||
|
void (*clk_rmw)(u32 val, u32 mask, const struct clk_omap_reg *reg);
|
||||||
int (*clkdm_clk_enable)(struct clockdomain *clkdm, struct clk *clk);
|
int (*clkdm_clk_enable)(struct clockdomain *clkdm, struct clk *clk);
|
||||||
int (*clkdm_clk_disable)(struct clockdomain *clkdm,
|
int (*clkdm_clk_disable)(struct clockdomain *clkdm,
|
||||||
struct clk *clk);
|
struct clk *clk);
|
||||||
|
|
Loading…
Reference in a new issue