mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-03 07:38:10 +00:00
Code Issues Releases Wiki Activity

clk: samsung: exynosautov9: add cmu_peris clock support

Browse source 
CMU_PERIS is responsible to control clocks of BLK_PERIS which has
OPT/MCT/WDT and TMU. This patch only supports WDT gate clocks and all
other clocks except WDT will be supported later.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20220504075154.58819-6-chanho61.park@samsung.com
This commit is contained in:
Chanho Park 2022-05-04 16:51:47 +09:00 committed by Sylwester Nawrocki
parent 17f7dc48aa
commit ceb4c8b3c6
1 changed files with 51 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

51
drivers/clk/samsung/clk-exynosautov9.c
View file

@ -1015,6 +1015,53 @@ static const struct samsung_cmu_info core_cmu_info __initconst = {
.clk_name = "dout_clkcmu_core_bus",
};
/* ---- CMU_PERIS ---------------------------------------------------------- */
/* Register Offset definitions for CMU_PERIS (0x10020000) */
#define PLL_CON0_MUX_CLKCMU_PERIS_BUS_USER 0x0600
#define CLK_CON_GAT_GOUT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK 0x2058
#define CLK_CON_GAT_GOUT_BLK_PERIS_UID_WDT_CLUSTER0_IPCLKPORT_PCLK 0x205c
#define CLK_CON_GAT_GOUT_BLK_PERIS_UID_WDT_CLUSTER1_IPCLKPORT_PCLK 0x2060
static const unsigned long peris_clk_regs[] __initconst = {
PLL_CON0_MUX_CLKCMU_PERIS_BUS_USER,
CLK_CON_GAT_GOUT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK,
CLK_CON_GAT_GOUT_BLK_PERIS_UID_WDT_CLUSTER0_IPCLKPORT_PCLK,
CLK_CON_GAT_GOUT_BLK_PERIS_UID_WDT_CLUSTER1_IPCLKPORT_PCLK,
};
/* List of parent clocks for Muxes in CMU_PERIS */
PNAME(mout_peris_bus_user_p) = { "oscclk", "dout_clkcmu_peris_bus" };
static const struct samsung_mux_clock peris_mux_clks[] __initconst = {
MUX(CLK_MOUT_PERIS_BUS_USER, "mout_peris_bus_user",
mout_peris_bus_user_p, PLL_CON0_MUX_CLKCMU_PERIS_BUS_USER, 4, 1),
};
static const struct samsung_gate_clock peris_gate_clks[] __initconst = {
GATE(CLK_GOUT_SYSREG_PERIS_PCLK, "gout_sysreg_peris_pclk",
"mout_peris_bus_user",
CLK_CON_GAT_GOUT_BLK_PERIS_UID_SYSREG_PERIS_IPCLKPORT_PCLK,
21, CLK_IGNORE_UNUSED, 0),
GATE(CLK_GOUT_WDT_CLUSTER0, "gout_wdt_cluster0", "mout_peris_bus_user",
CLK_CON_GAT_GOUT_BLK_PERIS_UID_WDT_CLUSTER0_IPCLKPORT_PCLK,
21, 0, 0),
GATE(CLK_GOUT_WDT_CLUSTER1, "gout_wdt_cluster1", "mout_peris_bus_user",
CLK_CON_GAT_GOUT_BLK_PERIS_UID_WDT_CLUSTER1_IPCLKPORT_PCLK,
21, 0, 0),
};
static const struct samsung_cmu_info peris_cmu_info __initconst = {
.mux_clks = peris_mux_clks,
.nr_mux_clks = ARRAY_SIZE(peris_mux_clks),
.gate_clks = peris_gate_clks,
.nr_gate_clks = ARRAY_SIZE(peris_gate_clks),
.nr_clk_ids = PERIS_NR_CLK,
.clk_regs = peris_clk_regs,
.nr_clk_regs = ARRAY_SIZE(peris_clk_regs),
.clk_name = "dout_clkcmu_peris_bus",
};
static int __init exynosautov9_cmu_probe(struct platform_device *pdev)
{
const struct samsung_cmu_info *info;
@ -1031,6 +1078,10 @@ static const struct of_device_id exynosautov9_cmu_of_match[] = {
.compatible = "samsung,exynosautov9-cmu-core",
.data = &core_cmu_info,
}, {
}, {
.compatible = "samsung,exynosautov9-cmu-peris",
.data = &peris_cmu_info,
}, {
},
};