[v3,05/12] clk: samsung: exynosautov9: add cmu_peris clock support

Commit Message

Chanho Park May 4, 2022, 7:51 a.m. UTC

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.

Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Chanho Park <[e-mail]>
---
 drivers/clk/samsung/clk-exynosautov9.c | 51 ++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

Comments

Chanwoo Choi May 4, 2022, 9:43 a.m. UTC | #1

Hi Chanho Park,

On 22. 5. 4. 16:51, Chanho Park wrote:
> 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.
> 
> Reviewed-by: Krzysztof Kozlowski <[e-mail]>
> Signed-off-by: Chanho Park <[e-mail]>
> ---
>   drivers/clk/samsung/clk-exynosautov9.c | 51 ++++++++++++++++++++++++++
>   1 file changed, 51 insertions(+)
> 

(snip)

Look good to me for all patches. But, some v3 patches has
not yet arrived into my mail box. So that I checked
the patches on lore.kernel.org[1].

[1] 
https://lore.kernel.org/linux-clk/[e-mail]/

Thanks for your work for latest Exynos SoC.

Acked-by: Chanwoo Choi <[e-mail]>

Patch

diff --git a/drivers/clk/samsung/clk-exynosautov9.c b/drivers/clk/samsung/clk-exynosautov9.c
index 984ecba83e42..b3ea586c0d21 100644
--- a/drivers/clk/samsung/clk-exynosautov9.c
+++ b/drivers/clk/samsung/clk-exynosautov9.c
@@ -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,
+	}, {
 	},
 };