> -----Original Message-----
> From: Sam Protsenko <semen.protsenko@xxxxxxxxxx>
> Sent: Thursday, February 23, 2023 1:22 PM
> To: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>; Chanwoo Choi
> <cw00.choi@xxxxxxxxxxx>; Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>; Rob
> Herring <robh+dt@xxxxxxxxxx>
> Cc: David Virag <virag.david003@xxxxxxxxx>; Chanho Park
> <chanho61.park@xxxxxxxxxxx>; Alim Akhtar <alim.akhtar@xxxxxxxxxxx>; Sumit
> Semwal <sumit.semwal@xxxxxxxxxx>; Tomasz Figa <tomasz.figa@xxxxxxxxx>;
> Michael Turquette <mturquette@xxxxxxxxxxxx>; Stephen Boyd
> <sboyd@xxxxxxxxxx>; linux-samsung-soc@xxxxxxxxxxxxxxx; linux-
> clk@xxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-arm-
> kernel@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
> Subject: [PATCH v2 5/6] clk: samsung: exynos850: Add AUD and HSI main gate
> clocks
>
> Add main gate clocks for controlling AUD and HSI CMUs:
> - gout_aud_cmu_aud_pclk
> - gout_hsi_cmu_hsi_pclk
>
> Those clocks were marked as CLK_IGNORE_UNUSED, as system hangs on boot
> otherwise.
>
> While at it, add missing PPMU (Performance Profiling Monitor Unit) clocks
> for CMU_HSI.
>
> Signed-off-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx>
Reviewed-by: Chanho Park <chanho61.park@xxxxxxxxxxx>
> ---
> Changes in v2:
> - Rebased on top of most recent soc/for-next tree
> - Added comment for CLK_IGNORE_UNUSED flag usage
>
> drivers/clk/samsung/clk-exynos850.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/drivers/clk/samsung/clk-exynos850.c
> b/drivers/clk/samsung/clk-exynos850.c
> index 601fe05e8555..6ab5fa8c2ef3 100644
> --- a/drivers/clk/samsung/clk-exynos850.c
> +++ b/drivers/clk/samsung/clk-exynos850.c
> @@ -674,6 +674,7 @@ static const struct samsung_cmu_info apm_cmu_info
> __initconst = {
> #define CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_UAIF4 0x2014
> #define CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_UAIF5 0x2018
> #define CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_UAIF6 0x201c
> +#define CLK_CON_GAT_CLK_AUD_CMU_AUD_PCLK 0x2020
> #define CLK_CON_GAT_GOUT_AUD_ABOX_ACLK 0x2048
> #define CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_SPDY 0x204c
> #define CLK_CON_GAT_GOUT_AUD_ABOX_CCLK_ASB 0x2050
> @@ -729,6 +730,7 @@ static const unsigned long aud_clk_regs[] __initconst
> = {
> CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_UAIF4,
> CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_UAIF5,
> CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_UAIF6,
> + CLK_CON_GAT_CLK_AUD_CMU_AUD_PCLK,
> CLK_CON_GAT_GOUT_AUD_ABOX_ACLK,
> CLK_CON_GAT_GOUT_AUD_ABOX_BCLK_SPDY,
> CLK_CON_GAT_GOUT_AUD_ABOX_CCLK_ASB,
> @@ -848,6 +850,9 @@ static const struct samsung_div_clock aud_div_clks[]
> __initconst = { };
>
> static const struct samsung_gate_clock aud_gate_clks[] __initconst = {
> + GATE(CLK_GOUT_AUD_CMU_AUD_PCLK, "gout_aud_cmu_aud_pclk",
> + "dout_aud_busd",
> + CLK_CON_GAT_CLK_AUD_CMU_AUD_PCLK, 21, CLK_IGNORE_UNUSED, 0),
> GATE(CLK_GOUT_AUD_CA32_CCLK, "gout_aud_ca32_cclk",
> "mout_aud_cpu_hch",
> CLK_CON_GAT_GOUT_AUD_ABOX_CCLK_CA32, 21, 0, 0),
> GATE(CLK_GOUT_AUD_ASB_CCLK, "gout_aud_asb_cclk",
> "dout_aud_cpu_aclk", @@ -1116,12 +1121,15 @@ static const struct
> samsung_cmu_info g3d_cmu_info __initconst = {
> #define PLL_CON0_MUX_CLKCMU_HSI_MMC_CARD_USER 0x0610
> #define PLL_CON0_MUX_CLKCMU_HSI_USB20DRD_USER 0x0620
> #define CLK_CON_MUX_MUX_CLK_HSI_RTC 0x1000
> +#define CLK_CON_GAT_CLK_HSI_CMU_HSI_PCLK 0x2000
> #define CLK_CON_GAT_HSI_USB20DRD_TOP_I_RTC_CLK__ALV 0x2008
> #define CLK_CON_GAT_HSI_USB20DRD_TOP_I_REF_CLK_50 0x200c
> #define CLK_CON_GAT_HSI_USB20DRD_TOP_I_PHY_REFCLK_26 0x2010
> #define CLK_CON_GAT_GOUT_HSI_GPIO_HSI_PCLK 0x2018
> #define CLK_CON_GAT_GOUT_HSI_MMC_CARD_I_ACLK 0x2024
> #define CLK_CON_GAT_GOUT_HSI_MMC_CARD_SDCLKIN 0x2028
> +#define CLK_CON_GAT_GOUT_HSI_PPMU_ACLK 0x202c
> +#define CLK_CON_GAT_GOUT_HSI_PPMU_PCLK 0x2030
> #define CLK_CON_GAT_GOUT_HSI_SYSREG_HSI_PCLK 0x2038
> #define CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_ACLK_PHYCTRL_20 0x203c
> #define CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_BUS_CLK_EARLY 0x2040
> @@ -1131,12 +1139,15 @@ static const unsigned long hsi_clk_regs[]
> __initconst = {
> PLL_CON0_MUX_CLKCMU_HSI_MMC_CARD_USER,
> PLL_CON0_MUX_CLKCMU_HSI_USB20DRD_USER,
> CLK_CON_MUX_MUX_CLK_HSI_RTC,
> + CLK_CON_GAT_CLK_HSI_CMU_HSI_PCLK,
> CLK_CON_GAT_HSI_USB20DRD_TOP_I_RTC_CLK__ALV,
> CLK_CON_GAT_HSI_USB20DRD_TOP_I_REF_CLK_50,
> CLK_CON_GAT_HSI_USB20DRD_TOP_I_PHY_REFCLK_26,
> CLK_CON_GAT_GOUT_HSI_GPIO_HSI_PCLK,
> CLK_CON_GAT_GOUT_HSI_MMC_CARD_I_ACLK,
> CLK_CON_GAT_GOUT_HSI_MMC_CARD_SDCLKIN,
> + CLK_CON_GAT_GOUT_HSI_PPMU_ACLK,
> + CLK_CON_GAT_GOUT_HSI_PPMU_PCLK,
> CLK_CON_GAT_GOUT_HSI_SYSREG_HSI_PCLK,
> CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_ACLK_PHYCTRL_20,
> CLK_CON_GAT_GOUT_HSI_USB20DRD_TOP_BUS_CLK_EARLY,
> @@ -1162,6 +1173,10 @@ static const struct samsung_mux_clock hsi_mux_clks[]
> __initconst = { };
>
> static const struct samsung_gate_clock hsi_gate_clks[] __initconst = {
> + /* TODO: Should be enabled in corresponding driver */
> + GATE(CLK_GOUT_HSI_CMU_HSI_PCLK, "gout_hsi_cmu_hsi_pclk",
> + "mout_hsi_bus_user",
> + CLK_CON_GAT_CLK_HSI_CMU_HSI_PCLK, 21, CLK_IGNORE_UNUSED, 0),
> GATE(CLK_GOUT_USB_RTC_CLK, "gout_usb_rtc", "mout_hsi_rtc",
> CLK_CON_GAT_HSI_USB20DRD_TOP_I_RTC_CLK__ALV, 21, 0, 0),
> GATE(CLK_GOUT_USB_REF_CLK, "gout_usb_ref", "mout_hsi_usb20drd_user",
> @@ -1176,6 +1191,10 @@ static const struct samsung_gate_clock
> hsi_gate_clks[] __initconst = {
> GATE(CLK_GOUT_MMC_CARD_SDCLKIN, "gout_mmc_card_sdclkin",
> "mout_hsi_mmc_card_user",
> CLK_CON_GAT_GOUT_HSI_MMC_CARD_SDCLKIN, 21, CLK_SET_RATE_PARENT,
> 0),
> + GATE(CLK_GOUT_HSI_PPMU_ACLK, "gout_hsi_ppmu_aclk",
> "mout_hsi_bus_user",
> + CLK_CON_GAT_GOUT_HSI_PPMU_ACLK, 21, 0, 0),
> + GATE(CLK_GOUT_HSI_PPMU_PCLK, "gout_hsi_ppmu_pclk",
> "mout_hsi_bus_user",
> + CLK_CON_GAT_GOUT_HSI_PPMU_PCLK, 21, 0, 0),
> GATE(CLK_GOUT_SYSREG_HSI_PCLK, "gout_sysreg_hsi_pclk",
> "mout_hsi_bus_user",
> CLK_CON_GAT_GOUT_HSI_SYSREG_HSI_PCLK, 21, 0, 0),
> --
> 2.39.1
