Commit e57c36bc authored by Alexey Klimov's avatar Alexey Klimov Committed by Krzysztof Kozlowski
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clk: samsung: exynos850: Add APM-to-AP mailbox clock 



Add APM mailbox clock for communicating between APM and main application
CPUs in CMU_APM unit. This clock is needed to access this mailbox
registers. This mailbox is used for ACPM communication between kernel
and APM co-processor.

Signed-off-by: default avatarAlexey Klimov <alexey.klimov@linaro.org>
Link: https://patch.msgid.link/20260320-exynos850-ap2apm-mailbox-v1-2-983eb3f296fc@linaro.org


Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
parent 495920b5

drivers/clk/samsung/clk-exynos850.c

+6 −1
Original line number Diff line number Diff line
@@ -19,7 +19,7 @@ 


/* NOTE: Must be equal to the last clock ID increased by one */

#define CLKS_NR_TOP			(CLK_DOUT_CPUCL1_SWITCH + 1)

#define CLKS_NR_APM			(CLK_GOUT_SYSREG_APM_PCLK + 1)

#define CLKS_NR_APM			(CLK_GOUT_MAILBOX_APM_AP_PCLK + 1)

#define CLKS_NR_AUD			(CLK_GOUT_AUD_CMU_AUD_PCLK + 1)

#define CLKS_NR_CMGP			(CLK_GOUT_SYSREG_CMGP_PCLK + 1)

#define CLKS_NR_CPUCL0			(CLK_CLUSTER0_SCLK + 1)
@@ -604,6 +604,7 @@ CLK_OF_DECLARE(exynos850_cmu_top, "samsung,exynos850-cmu-top", 
#define CLK_CON_GAT_GOUT_APM_APBIF_TOP_RTC_PCLK		0x2028

#define CLK_CON_GAT_GOUT_APM_I3C_APM_PMIC_I_PCLK	0x2034

#define CLK_CON_GAT_GOUT_APM_I3C_APM_PMIC_I_SCLK	0x2038

#define CLK_CON_GAT_GOUT_APM_MAILBOX_APM_AP_PCLK	0x2060

#define CLK_CON_GAT_GOUT_APM_SPEEDY_APM_PCLK		0x20bc

#define CLK_CON_GAT_GOUT_APM_SYSREG_APM_PCLK		0x20c0
@@ -628,6 +629,7 @@ static const unsigned long apm_clk_regs[] __initconst = { 
	CLK_CON_GAT_GOUT_APM_I3C_APM_PMIC_I_SCLK,

	CLK_CON_GAT_GOUT_APM_SPEEDY_APM_PCLK,

	CLK_CON_GAT_GOUT_APM_SYSREG_APM_PCLK,

	CLK_CON_GAT_GOUT_APM_MAILBOX_APM_AP_PCLK,

};



/* List of parent clocks for Muxes in CMU_APM */
@@ -698,6 +700,9 @@ static const struct samsung_gate_clock apm_gate_clks[] __initconst = { 
	     CLK_CON_GAT_GOUT_APM_APBIF_PMU_ALIVE_PCLK, 21, CLK_IS_CRITICAL, 0),

	GATE(CLK_GOUT_SYSREG_APM_PCLK, "gout_sysreg_apm_pclk", "dout_apm_bus",

	     CLK_CON_GAT_GOUT_APM_SYSREG_APM_PCLK, 21, 0, 0),

	GATE(CLK_GOUT_MAILBOX_APM_AP_PCLK, "gout_mailbox_apm_ap_pclk",

	     "dout_apm_func",

	     CLK_CON_GAT_GOUT_APM_MAILBOX_APM_AP_PCLK, 21, 0, 0),

};



static const struct samsung_cmu_info apm_cmu_info __initconst = {