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Date: Wed, 22 Jun 2022 01:34:10 +0200
From: Robert Foss <robert.foss@...aro.org>
To: bjorn.andersson@...aro.org, agross@...nel.org,
mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org,
krzk+dt@...nel.org, jonathan@...ek.ca, robert.foss@...aro.org,
linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>
Subject: [PATCH v6 4/6] clk: qcom: add support for SM8350 DISPCC
From: Jonathan Marek <jonathan@...ek.ca>
Add support to the SM8350 display clock controller by extending the SM8250
display clock controller, which is almost identical but has some minor
differences.
Signed-off-by: Jonathan Marek <jonathan@...ek.ca>
Signed-off-by: Robert Foss <robert.foss@...aro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
Changes since v1
- Remove comment - Dmitry
Changes since v2
- Add my SoB - Bjorn
- Remove CLK_ASSUME_ENABLED_WHEN_UNUSED flag
Changes since v3
- Add kconfig dependency on SM_GCC_8350 - Konrad
- Change hex to lowercase - Konrad
- Split from dispcc-sm8250.c implementation
- Switch from .fw_name to .index
Changes since v4
- Hex to lowercase - Konrad
- Remove bad match table entries - Konrad
Changes since v5
- Reverted split from dispcc-sm8250
- Re-added tags from v3
drivers/clk/qcom/Kconfig | 4 +--
drivers/clk/qcom/dispcc-sm8250.c | 60 +++++++++++++++++++++++++++++++-
2 files changed, 61 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index b11235c21952..4c3d1a548b7a 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -618,11 +618,11 @@ config SM_DISPCC_6125
splash screen
config SM_DISPCC_8250
- tristate "SM8150 and SM8250 Display Clock Controller"
+ tristate "SM8150/SM8250/SM8350 Display Clock Controller"
depends on SM_GCC_8150 || SM_GCC_8250
help
Support for the display clock controller on Qualcomm Technologies, Inc
- SM8150 and SM8250 devices.
+ SM8150/SM8250/SM8350 devices.
Say Y if you want to support display devices and functionality such as
splash screen.
diff --git a/drivers/clk/qcom/dispcc-sm8250.c b/drivers/clk/qcom/dispcc-sm8250.c
index db9379634fb2..4e101d584115 100644
--- a/drivers/clk/qcom/dispcc-sm8250.c
+++ b/drivers/clk/qcom/dispcc-sm8250.c
@@ -43,6 +43,10 @@ static struct pll_vco vco_table[] = {
{ 249600000, 2000000000, 0 },
};
+static struct pll_vco lucid_5lpe_vco[] = {
+ { 249600000, 1750000000, 0 },
+};
+
static struct alpha_pll_config disp_cc_pll0_config = {
.l = 0x47,
.alpha = 0xE000,
@@ -1228,6 +1232,7 @@ static const struct of_device_id disp_cc_sm8250_match_table[] = {
{ .compatible = "qcom,sc8180x-dispcc" },
{ .compatible = "qcom,sm8150-dispcc" },
{ .compatible = "qcom,sm8250-dispcc" },
+ { .compatible = "qcom,sm8350-dispcc" },
{ }
};
MODULE_DEVICE_TABLE(of, disp_cc_sm8250_match_table);
@@ -1258,7 +1263,7 @@ static int disp_cc_sm8250_probe(struct platform_device *pdev)
return PTR_ERR(regmap);
}
- /* note: trion == lucid, except for the prepare() op */
+ /* Apply differences for SM8150 and SM8350 */
BUILD_BUG_ON(CLK_ALPHA_PLL_TYPE_TRION != CLK_ALPHA_PLL_TYPE_LUCID);
if (of_device_is_compatible(pdev->dev.of_node, "qcom,sc8180x-dispcc") ||
of_device_is_compatible(pdev->dev.of_node, "qcom,sm8150-dispcc")) {
@@ -1270,6 +1275,59 @@ static int disp_cc_sm8250_probe(struct platform_device *pdev)
disp_cc_pll1_config.config_ctl_hi1_val = 0x00000024;
disp_cc_pll1_config.user_ctl_hi1_val = 0x000000D0;
disp_cc_pll1_init.ops = &clk_alpha_pll_trion_ops;
+ } else if (of_device_is_compatible(pdev->dev.of_node, "qcom,sm8350-dispcc")) {
+ static struct clk_rcg2 * const rcgs[] = {
+ &disp_cc_mdss_byte0_clk_src,
+ &disp_cc_mdss_byte1_clk_src,
+ &disp_cc_mdss_dp_aux1_clk_src,
+ &disp_cc_mdss_dp_aux_clk_src,
+ &disp_cc_mdss_dp_link1_clk_src,
+ &disp_cc_mdss_dp_link_clk_src,
+ &disp_cc_mdss_dp_pixel1_clk_src,
+ &disp_cc_mdss_dp_pixel2_clk_src,
+ &disp_cc_mdss_dp_pixel_clk_src,
+ &disp_cc_mdss_esc0_clk_src,
+ &disp_cc_mdss_mdp_clk_src,
+ &disp_cc_mdss_pclk0_clk_src,
+ &disp_cc_mdss_pclk1_clk_src,
+ &disp_cc_mdss_rot_clk_src,
+ &disp_cc_mdss_vsync_clk_src,
+ };
+ static struct clk_regmap_div * const divs[] = {
+ &disp_cc_mdss_byte0_div_clk_src,
+ &disp_cc_mdss_byte1_div_clk_src,
+ &disp_cc_mdss_dp_link1_div_clk_src,
+ &disp_cc_mdss_dp_link_div_clk_src,
+ };
+ unsigned int i;
+ static bool offset_applied;
+
+ /* only apply the offsets once (in case of deferred probe) */
+ if (!offset_applied) {
+ for (i = 0; i < ARRAY_SIZE(rcgs); i++)
+ rcgs[i]->cmd_rcgr -= 4;
+
+ for (i = 0; i < ARRAY_SIZE(divs); i++) {
+ divs[i]->reg -= 4;
+ divs[i]->width = 4;
+ }
+
+ disp_cc_mdss_ahb_clk.halt_reg -= 4;
+ disp_cc_mdss_ahb_clk.clkr.enable_reg -= 4;
+
+ offset_applied = true;
+ }
+
+ disp_cc_mdss_ahb_clk_src.cmd_rcgr = 0x22a0;
+
+ disp_cc_pll0_config.config_ctl_hi1_val = 0x2a9a699c;
+ disp_cc_pll0_config.test_ctl_hi1_val = 0x01800000;
+ disp_cc_pll0_init.ops = &clk_alpha_pll_lucid_5lpe_ops;
+ disp_cc_pll0.vco_table = lucid_5lpe_vco;
+ disp_cc_pll1_config.config_ctl_hi1_val = 0x2a9a699c;
+ disp_cc_pll1_config.test_ctl_hi1_val = 0x01800000;
+ disp_cc_pll1_init.ops = &clk_alpha_pll_lucid_5lpe_ops;
+ disp_cc_pll1.vco_table = lucid_5lpe_vco;
}
clk_lucid_pll_configure(&disp_cc_pll0, regmap, &disp_cc_pll0_config);
--
2.34.1
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