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7 Commits

Author SHA1 Message Date
Yang Yingliang 3475c88548 clk: davinci: cfgchip: Use dev_err_probe() helper 
dev_err() can be replace with dev_err_probe() which will check if error
code is -EPROBE_DEFER.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220913032228.985852-1-yangyingliang@huawei.com
Reviewed-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2022-09-30 13:47:21 -07:00
Krzysztof Kozlowski faeda014b4 clk: davinci: add missing kerneldoc 
Add missing kerneldoc to fix compile warning:

  drivers/clk/davinci/da8xx-cfgchip.c:578: warning: Function parameter or member 'dev' not described in 'da8xx_cfgchip_register_usb1_clk48'

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: David Lechner <david@lechnology.com>
Link: https://lore.kernel.org/r/20200916161740.14173-3-krzk@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2020-09-22 12:44:16 -07:00
Ding Xiang 33c70c1399 clk: davinci: cfgchip: use PTR_ERR_OR_ZERO in da8xx_cfgchip_register_div4p5 
use PTR_ERR_OR_ZERO inetead of return code

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2019-04-11 11:45:02 -07:00
Dan Carpenter 0613de3737 clk: davinci: cfgchip: testing the wrong variable 
There is a copy and paste bug here.  We should be testing "usb1" instead
of "usb0".

Fixes: 58e1e2d2cd ("clk: davinci: cfgchip: Add TI DA8XX USB PHY clocks")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Lechner <david@lechnology.com>
 2018-06-25 18:07:02 -05:00
Kees Cook 0ed2dd03b9 treewide: Use struct_size() for devm_kmalloc() and friends 
Replaces open-coded struct size calculations with struct_size() for
devm_*, f2fs_*, and sock_* allocations. Automatically generated (and
manually adjusted) from the following Coccinelle script:

// Direct reference to struct field.
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@

- alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(*VAR->ELEMENT), GFP)
+ alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)

// mr = kzalloc(sizeof(*mr) + m * sizeof(mr->map[0]), GFP_KERNEL);
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
identifier VAR, ELEMENT;
expression COUNT;
@@

- alloc(HANDLE, sizeof(*VAR) + COUNT * sizeof(VAR->ELEMENT[0]), GFP)
+ alloc(HANDLE, struct_size(VAR, ELEMENT, COUNT), GFP)

// Same pattern, but can't trivially locate the trailing element name,
// or variable name.
@@
identifier alloc =~ "devm_kmalloc|devm_kzalloc|sock_kmalloc|f2fs_kmalloc|f2fs_kzalloc";
expression HANDLE;
expression GFP;
expression SOMETHING, COUNT, ELEMENT;
@@

- alloc(HANDLE, sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP)
+ alloc(HANDLE, CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP)

Signed-off-by: Kees Cook <keescook@chromium.org>
 2018-06-06 11:15:43 -07:00
David Lechner 58e1e2d2cd clk: davinci: cfgchip: Add TI DA8XX USB PHY clocks 
This adds a new driver for the USB PHY clocks in the CFGCHIP2 syscon
register on TI DA8XX-type SoCs.

The USB0 (USB 2.0) PHY clock is an interesting case because it calls
clk_enable() in a reentrant way. The USB 2.0 PSC only has to be enabled
temporarily while we are locking the PLL, which takes place during the
clk_enable() callback.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-03-20 10:16:26 -07:00
David Lechner 1e88a8d64f clk: davinci: New driver for TI DA8XX CFGCHIP clocks 
This adds a new driver for the gate and multiplexer clocks in the
CFGCHIPn syscon registers on TI DA8XX-type SoCs.

Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
 2018-03-20 10:16:26 -07:00