[PATCH v2 4/6] clk: qcom: Add support for Camera Clock Controller on QCS8300

Imran Shaik
2024-10-24T13:32:00Z

Add support to the QCS8300 Camera clock controller by extending
the SA8775P Camera clock controller, which is mostly identical
but QCS8300 has few additional clocks and few other differences.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Imran Shaik <quic_imrashai@quicinc.com>
---
drivers/clk/qcom/camcc-sa8775p.c | 99 ++++++++++++++++++++++++++++++++++++++--
1 file changed, 95 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/qcom/camcc-sa8775p.c b/drivers/clk/qcom/camcc-sa8775p.c
index c04801a5af35..0ef3c6015c34 100644
--- a/drivers/clk/qcom/camcc-sa8775p.c
+++ b/drivers/clk/qcom/camcc-sa8775p.c
@@ -1682,6 +1682,24 @@ static struct clk_branch cam_cc_sm_obs_clk = {
},
};

+static struct clk_branch cam_cc_titan_top_accu_shift_clk = {
+ .halt_reg = 0x131f0,
+ .halt_check = BRANCH_HALT_VOTED,
+ .clkr = {
+ .enable_reg = 0x131f0,
+ .enable_mask = BIT(0),
+ .hw.init = &(const struct clk_init_data) {
+ .name = "cam_cc_titan_top_accu_shift_clk",
+ .parent_hws = (const struct clk_hw*[]) {
+ &cam_cc_xo_clk_src.clkr.hw,
+ },
+ .num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
+ .ops = &clk_branch2_ops,
+ },
+ },
+};
+
static struct gdsc cam_cc_titan_top_gdsc = {
.gdscr = 0x131bc,
.en_rest_wait_val = 0x2,
@@ -1776,6 +1794,7 @@ static struct clk_regmap *cam_cc_sa8775p_clocks[] = {
[CAM_CC_SLEEP_CLK_SRC] = &cam_cc_sleep_clk_src.clkr,
[CAM_CC_SLOW_AHB_CLK_SRC] = &cam_cc_slow_ahb_clk_src.clkr,
[CAM_CC_SM_OBS_CLK] = &cam_cc_sm_obs_clk.clkr,
+ [CAM_CC_TITAN_TOP_ACCU_SHIFT_CLK] = NULL,
[CAM_CC_XO_CLK_SRC] = &cam_cc_xo_clk_src.clkr,
[CAM_CC_QDSS_DEBUG_XO_CLK] = &cam_cc_qdss_debug_xo_clk.clkr,
};
@@ -1812,6 +1831,7 @@ static struct qcom_cc_desc cam_cc_sa8775p_desc = {
};

static const struct of_device_id cam_cc_sa8775p_match_table[] = {
+ { .compatible = "qcom,qcs8300-camcc" },
{ .compatible = "qcom,sa8775p-camcc" },
{ }
};
@@ -1842,10 +1862,81 @@ static int cam_cc_sa8775p_probe(struct platform_device *pdev)
clk_lucid_evo_pll_configure(&cam_cc_pll4, regmap, &cam_cc_pll4_config);
clk_lucid_evo_pll_configure(&cam_cc_pll5, regmap, &cam_cc_pll5_config);

- /* Keep some clocks always enabled */
- qcom_branch_set_clk_en(regmap, 0x13194); /* CAM_CC_CAMNOC_XO_CLK */
- qcom_branch_set_clk_en(regmap, 0x131ec); /* CAM_CC_GDSC_CLK */
- qcom_branch_set_clk_en(regmap, 0x13208); /* CAM_CC_SLEEP_CLK */
+ if (of_device_is_compatible(pdev->dev.of_node, "qcom,qcs8300-camcc")) {
+ cam_cc_camnoc_axi_clk_src.cmd_rcgr = 0x13154;
+ cam_cc_camnoc_axi_clk.halt_reg = 0x1316c;
+ cam_cc_camnoc_axi_clk.clkr.enable_reg = 0x1316c;
+ cam_cc_camnoc_dcd_xo_clk.halt_reg = 0x13174;
+ cam_cc_camnoc_dcd_xo_clk.clkr.enable_reg = 0x13174;
+
+ cam_cc_csi0phytimer_clk_src.cmd_rcgr = 0x15054;
+ cam_cc_csi1phytimer_clk_src.cmd_rcgr = 0x15078;
+ cam_cc_csi2phytimer_clk_src.cmd_rcgr = 0x15098;
+ cam_cc_csid_clk_src.cmd_rcgr = 0x13134;
+
+ cam_cc_mclk0_clk_src.cmd_rcgr = 0x15000;
+ cam_cc_mclk1_clk_src.cmd_rcgr = 0x1501c;
+ cam_cc_mclk2_clk_src.cmd_rcgr = 0x15038;
+
+ cam_cc_fast_ahb_clk_src.cmd_rcgr = 0x13104;
+ cam_cc_slow_ahb_clk_src.cmd_rcgr = 0x1311c;
+ cam_cc_xo_clk_src.cmd_rcgr = 0x131b8;
+ cam_cc_sleep_clk_src.cmd_rcgr = 0x131d4;
+
+ cam_cc_core_ahb_clk.halt_reg = 0x131b4;
+ cam_cc_core_ahb_clk.clkr.enable_reg = 0x131b4;
+
+ cam_cc_cpas_ahb_clk.halt_reg = 0x130f4;
+ cam_cc_cpas_ahb_clk.clkr.enable_reg = 0x130f4;
+ cam_cc_cpas_fast_ahb_clk.halt_reg = 0x130fc;
+ cam_cc_cpas_fast_ahb_clk.clkr.enable_reg = 0x130fc;
+
+ cam_cc_csi0phytimer_clk.halt_reg = 0x1506c;
+ cam_cc_csi0phytimer_clk.clkr.enable_reg = 0x1506c;
+ cam_cc_csi1phytimer_clk.halt_reg = 0x15090;
+ cam_cc_csi1phytimer_clk.clkr.enable_reg = 0x15090;
+ cam_cc_csi2phytimer_clk.halt_reg = 0x150b0;
+ cam_cc_csi2phytimer_clk.clkr.enable_reg = 0x150b0;
+ cam_cc_csid_clk.halt_reg = 0x1314c;
+ cam_cc_csid_clk.clkr.enable_reg = 0x1314c;
+ cam_cc_csid_csiphy_rx_clk.halt_reg = 0x15074;
+ cam_cc_csid_csiphy_rx_clk.clkr.enable_reg = 0x15074;
+ cam_cc_csiphy0_clk.halt_reg = 0x15070;
+ cam_cc_csiphy0_clk.clkr.enable_reg = 0x15070;
+ cam_cc_csiphy1_clk.halt_reg = 0x15094;
+ cam_cc_csiphy1_clk.clkr.enable_reg = 0x15094;
+ cam_cc_csiphy2_clk.halt_reg = 0x150b4;
+ cam_cc_csiphy2_clk.clkr.enable_reg = 0x150b4;
+
+ cam_cc_mclk0_clk.halt_reg = 0x15018;
+ cam_cc_mclk0_clk.clkr.enable_reg = 0x15018;
+ cam_cc_mclk1_clk.halt_reg = 0x15034;
+ cam_cc_mclk1_clk.clkr.enable_reg = 0x15034;
+ cam_cc_mclk2_clk.halt_reg = 0x15050;
+ cam_cc_mclk2_clk.clkr.enable_reg = 0x15050;
+
+ cam_cc_titan_top_gdsc.gdscr = 0x131a0;
+
+ cam_cc_sa8775p_clocks[CAM_CC_CCI_3_CLK] = NULL;
+ cam_cc_sa8775p_clocks[CAM_CC_CCI_3_CLK_SRC] = NULL;
+ cam_cc_sa8775p_clocks[CAM_CC_CSI3PHYTIMER_CLK] = NULL;
+ cam_cc_sa8775p_clocks[CAM_CC_CSI3PHYTIMER_CLK_SRC] = NULL;
+ cam_cc_sa8775p_clocks[CAM_CC_CSIPHY3_CLK] = NULL;
+ cam_cc_sa8775p_clocks[CAM_CC_MCLK3_CLK] = NULL;
+ cam_cc_sa8775p_clocks[CAM_CC_MCLK3_CLK_SRC] = NULL;
+ cam_cc_sa8775p_clocks[CAM_CC_TITAN_TOP_ACCU_SHIFT_CLK] =
+ &cam_cc_titan_top_accu_shift_clk.clkr;
+
+ /* Keep some clocks always enabled */
+ qcom_branch_set_clk_en(regmap, 0x13178); /* CAM_CC_CAMNOC_XO_CLK */
+ qcom_branch_set_clk_en(regmap, 0x131d0); /* CAM_CC_GDSC_CLK */
+ qcom_branch_set_clk_en(regmap, 0x131ec); /* CAM_CC_SLEEP_CLK */
+ } else {
+ /* Keep some clocks always enabled */
+ qcom_branch_set_clk_en(regmap, 0x13194); /* CAM_CC_CAMNOC_XO_CLK */
+ qcom_branch_set_clk_en(regmap, 0x131ec); /* CAM_CC_GDSC_CLK */
+ qcom_branch_set_clk_en(regmap, 0x13208); /* CAM_CC_SLEEP_CLK */
+ }

ret = qcom_cc_really_probe(&pdev->dev, &cam_cc_sa8775p_desc, regmap);

--
2.25.1