clk: qcom: gcc-msm8998: add SSC-related clocks

Add four clocks which need to be manipulated in order to initialize the AHB
bus which exposes the SCC block in the global address space.

If a device is known to be configured such that writing to these
registers from Linux is not permitted, the 'protected-clocks'
device tree property must be used to denote that fact.

Signed-off-by: Michael Srba <Michael.Srba@seznam.cz>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220411072156.24451-3-michael.srba@seznam.cz

1 files changed, 56 insertions, 0 deletions

diff --git a/drivers/clk/qcom/gcc-msm8998.c b/drivers/clk/qcom/gcc-msm8998.c
index 407e2c5caea4..33473c52eb90 100644
--- a/drivers/clk/qcom/gcc-msm8998.c
+++ b/drivers/clk/qcom/gcc-msm8998.c
@@ -2833,6 +2833,58 @@ static struct clk_branch gcc_rx1_usb2_clkref_clk = {
 	},
 };
 
+static struct clk_branch gcc_im_sleep_clk = {
+	.halt_reg = 0x4300c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x4300c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data){
+			.name = "gcc_im_sleep_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch aggre2_snoc_north_axi_clk = {
+	.halt_reg = 0x83010,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x83010,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data){
+			.name = "aggre2_snoc_north_axi_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch ssc_xo_clk = {
+	.halt_reg = 0x63018,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x63018,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data){
+			.name = "ssc_xo_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static struct clk_branch ssc_cnoc_ahbs_clk = {
+	.halt_reg = 0x6300c,
+	.halt_check = BRANCH_HALT,
+	.clkr = {
+		.enable_reg = 0x6300c,
+		.enable_mask = BIT(0),
+		.hw.init = &(const struct clk_init_data){
+			.name = "ssc_cnoc_ahbs_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct gdsc pcie_0_gdsc = {
 	.gdscr = 0x6b004,
 	.gds_hw_ctrl = 0x0,
@@ -3036,6 +3088,10 @@ static struct clk_regmap *gcc_msm8998_clocks[] = {
 	[GCC_MSS_MNOC_BIMC_AXI_CLK] = &gcc_mss_mnoc_bimc_axi_clk.clkr,
 	[GCC_MMSS_GPLL0_CLK] = &gcc_mmss_gpll0_clk.clkr,
 	[HMSS_GPLL0_CLK_SRC] = &hmss_gpll0_clk_src.clkr,
+	[GCC_IM_SLEEP] = &gcc_im_sleep_clk.clkr,
+	[AGGRE2_SNOC_NORTH_AXI] = &aggre2_snoc_north_axi_clk.clkr,
+	[SSC_XO] = &ssc_xo_clk.clkr,
+	[SSC_CNOC_AHBS_CLK] = &ssc_cnoc_ahbs_clk.clkr,
 };
 
 static struct gdsc *gcc_msm8998_gdscs[] = {