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From:   Bartosz Dudziak <bartosz.dudziak@snejp.pl>
To:     Andy Gross <agross@kernel.org>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Jeffrey Hugo <jhugo@codeaurora.org>,
        Taniya Das <tdas@codeaurora.org>,
        linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        ~postmarketos/upstreaming@lists.sr.ht, Luca Weiss <luca@z3ntu.xyz>
Cc:     Bartosz Dudziak <bartosz.dudziak@snejp.pl>
Subject: [PATCH v2 2/2] clk: qcom: Add MSM8226 Multimedia Clock Controller support
Date:   Mon,  7 Feb 2022 19:54:11 +0100
Message-Id: <20220207185411.19118-3-bartosz.dudziak@snejp.pl>
In-Reply-To: <20220207185411.19118-1-bartosz.dudziak@snejp.pl>
References: <20220207185411.19118-1-bartosz.dudziak@snejp.pl>
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Modify the existing MSM8974 multimedia clock controller driver to
support the MMCC found on MSM8226 based devices. This should allow most
multimedia device drivers to probe and control their clocks.

Signed-off-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl>
---
 drivers/clk/qcom/mmcc-msm8974.c | 206 +++++++++++++++++++++++++++++++-
 1 file changed, 201 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/qcom/mmcc-msm8974.c b/drivers/clk/qcom/mmcc-msm8974.c
index a1552b6771..f74662925a 100644
--- a/drivers/clk/qcom/mmcc-msm8974.c
+++ b/drivers/clk/qcom/mmcc-msm8974.c
@@ -257,6 +257,18 @@ static struct clk_rcg2 mmss_ahb_clk_src = {
 	},
 };
 
+static struct freq_tbl ftbl_mmss_axi_clk_msm8226[] = {
+	F(19200000, P_XO, 1, 0, 0),
+	F(37500000, P_GPLL0, 16, 0, 0),
+	F(50000000, P_GPLL0, 12, 0, 0),
+	F(75000000, P_GPLL0, 8, 0, 0),
+	F(100000000, P_GPLL0, 6, 0, 0),
+	F(150000000, P_GPLL0, 4, 0, 0),
+	F(200000000, P_MMPLL0, 4, 0, 0),
+	F(266666666, P_MMPLL0, 3, 0, 0),
+	{ }
+};
+
 static struct freq_tbl ftbl_mmss_axi_clk[] = {
 	F( 19200000, P_XO, 1, 0, 0),
 	F( 37500000, P_GPLL0, 16, 0, 0),
@@ -364,6 +376,23 @@ static struct clk_rcg2 csi3_clk_src = {
 	},
 };
 
+static struct freq_tbl ftbl_camss_vfe_vfe0_clk_msm8226[] = {
+	F(37500000, P_GPLL0, 16, 0, 0),
+	F(50000000, P_GPLL0, 12, 0, 0),
+	F(60000000, P_GPLL0, 10, 0, 0),
+	F(80000000, P_GPLL0, 7.5, 0, 0),
+	F(100000000, P_GPLL0, 6, 0, 0),
+	F(109090000, P_GPLL0, 5.5, 0, 0),
+	F(133330000, P_GPLL0, 4.5, 0, 0),
+	F(150000000, P_GPLL0, 4, 0, 0),
+	F(200000000, P_GPLL0, 3, 0, 0),
+	F(228570000, P_MMPLL0, 3.5, 0, 0),
+	F(266670000, P_MMPLL0, 3, 0, 0),
+	F(320000000, P_MMPLL0, 2.5, 0, 0),
+	F(400000000, P_MMPLL0, 2, 0, 0),
+	{ }
+};
+
 static struct freq_tbl ftbl_camss_vfe_vfe0_1_clk[] = {
 	F(37500000, P_GPLL0, 16, 0, 0),
 	F(50000000, P_GPLL0, 12, 0, 0),
@@ -407,6 +436,18 @@ static struct clk_rcg2 vfe1_clk_src = {
 	},
 };
 
+static struct freq_tbl ftbl_mdss_mdp_clk_msm8226[] = {
+	F(37500000, P_GPLL0, 16, 0, 0),
+	F(60000000, P_GPLL0, 10, 0, 0),
+	F(75000000, P_GPLL0, 8, 0, 0),
+	F(92310000, P_GPLL0, 6.5, 0, 0),
+	F(100000000, P_GPLL0, 6, 0, 0),
+	F(133330000, P_MMPLL0, 6, 0, 0),
+	F(177780000, P_MMPLL0, 4.5, 0, 0),
+	F(200000000, P_MMPLL0, 4, 0, 0),
+	{ }
+};
+
 static struct freq_tbl ftbl_mdss_mdp_clk[] = {
 	F(37500000, P_GPLL0, 16, 0, 0),
 	F(60000000, P_GPLL0, 10, 0, 0),
@@ -513,6 +554,14 @@ static struct clk_rcg2 pclk1_clk_src = {
 	},
 };
 
+static struct freq_tbl ftbl_venus0_vcodec0_clk_msm8226[] = {
+	F(66700000, P_GPLL0, 9, 0, 0),
+	F(100000000, P_GPLL0, 6, 0, 0),
+	F(133330000, P_MMPLL0, 6, 0, 0),
+	F(160000000, P_MMPLL0, 5, 0, 0),
+	{ }
+};
+
 static struct freq_tbl ftbl_venus0_vcodec0_clk[] = {
 	F(50000000, P_GPLL0, 12, 0, 0),
 	F(100000000, P_GPLL0, 6, 0, 0),
@@ -593,6 +642,13 @@ static struct clk_rcg2 camss_gp1_clk_src = {
 	},
 };
 
+static struct freq_tbl ftbl_camss_mclk0_3_clk_msm8226[] = {
+	F(19200000, P_XO, 1, 0, 0),
+	F(24000000, P_GPLL0, 5, 1, 5),
+	F(66670000, P_GPLL0, 9, 0, 0),
+	{ }
+};
+
 static struct freq_tbl ftbl_camss_mclk0_3_clk[] = {
 	F(4800000, P_XO, 4, 0, 0),
 	F(6000000, P_GPLL0, 10, 1, 10),
@@ -705,6 +761,15 @@ static struct clk_rcg2 csi2phytimer_clk_src = {
 	},
 };
 
+static struct freq_tbl ftbl_camss_vfe_cpp_clk_msm8226[] = {
+	F(133330000, P_GPLL0, 4.5, 0, 0),
+	F(150000000, P_GPLL0, 4, 0, 0),
+	F(266670000, P_MMPLL0, 3, 0, 0),
+	F(320000000, P_MMPLL0, 2.5, 0, 0),
+	F(400000000, P_MMPLL0, 2, 0, 0),
+	{ }
+};
+
 static struct freq_tbl ftbl_camss_vfe_cpp_clk[] = {
 	F(133330000, P_GPLL0, 4.5, 0, 0),
 	F(266670000, P_MMPLL0, 3, 0, 0),
@@ -2366,6 +2431,116 @@ static struct gdsc oxilicx_gdsc = {
 	.pwrsts = PWRSTS_OFF_ON,
 };
 
+static struct clk_regmap *mmcc_msm8226_clocks[] = {
+	[MMSS_AHB_CLK_SRC] = &mmss_ahb_clk_src.clkr,
+	[MMSS_AXI_CLK_SRC] = &mmss_axi_clk_src.clkr,
+	[MMPLL0] = &mmpll0.clkr,
+	[MMPLL0_VOTE] = &mmpll0_vote,
+	[MMPLL1] = &mmpll1.clkr,
+	[MMPLL1_VOTE] = &mmpll1_vote,
+	[CSI0_CLK_SRC] = &csi0_clk_src.clkr,
+	[CSI1_CLK_SRC] = &csi1_clk_src.clkr,
+	[VFE0_CLK_SRC] = &vfe0_clk_src.clkr,
+	[MDP_CLK_SRC] = &mdp_clk_src.clkr,
+	[JPEG0_CLK_SRC] = &jpeg0_clk_src.clkr,
+	[PCLK0_CLK_SRC] = &pclk0_clk_src.clkr,
+	[VCODEC0_CLK_SRC] = &vcodec0_clk_src.clkr,
+	[CCI_CLK_SRC] = &cci_clk_src.clkr,
+	[CAMSS_GP0_CLK_SRC] = &camss_gp0_clk_src.clkr,
+	[CAMSS_GP1_CLK_SRC] = &camss_gp1_clk_src.clkr,
+	[MCLK0_CLK_SRC] = &mclk0_clk_src.clkr,
+	[MCLK1_CLK_SRC] = &mclk1_clk_src.clkr,
+	[CSI0PHYTIMER_CLK_SRC] = &csi0phytimer_clk_src.clkr,
+	[CSI1PHYTIMER_CLK_SRC] = &csi1phytimer_clk_src.clkr,
+	[CPP_CLK_SRC] = &cpp_clk_src.clkr,
+	[BYTE0_CLK_SRC] = &byte0_clk_src.clkr,
+	[ESC0_CLK_SRC] = &esc0_clk_src.clkr,
+	[VSYNC_CLK_SRC] = &vsync_clk_src.clkr,
+	[CAMSS_CCI_CCI_AHB_CLK] = &camss_cci_cci_ahb_clk.clkr,
+	[CAMSS_CCI_CCI_CLK] = &camss_cci_cci_clk.clkr,
+	[CAMSS_CSI0_AHB_CLK] = &camss_csi0_ahb_clk.clkr,
+	[CAMSS_CSI0_CLK] = &camss_csi0_clk.clkr,
+	[CAMSS_CSI0PHY_CLK] = &camss_csi0phy_clk.clkr,
+	[CAMSS_CSI0PIX_CLK] = &camss_csi0pix_clk.clkr,
+	[CAMSS_CSI0RDI_CLK] = &camss_csi0rdi_clk.clkr,
+	[CAMSS_CSI1_AHB_CLK] = &camss_csi1_ahb_clk.clkr,
+	[CAMSS_CSI1_CLK] = &camss_csi1_clk.clkr,
+	[CAMSS_CSI1PHY_CLK] = &camss_csi1phy_clk.clkr,
+	[CAMSS_CSI1PIX_CLK] = &camss_csi1pix_clk.clkr,
+	[CAMSS_CSI1RDI_CLK] = &camss_csi1rdi_clk.clkr,
+	[CAMSS_CSI_VFE0_CLK] = &camss_csi_vfe0_clk.clkr,
+	[CAMSS_GP0_CLK] = &camss_gp0_clk.clkr,
+	[CAMSS_GP1_CLK] = &camss_gp1_clk.clkr,
+	[CAMSS_ISPIF_AHB_CLK] = &camss_ispif_ahb_clk.clkr,
+	[CAMSS_JPEG_JPEG0_CLK] = &camss_jpeg_jpeg0_clk.clkr,
+	[CAMSS_JPEG_JPEG_AHB_CLK] = &camss_jpeg_jpeg_ahb_clk.clkr,
+	[CAMSS_JPEG_JPEG_AXI_CLK] = &camss_jpeg_jpeg_axi_clk.clkr,
+	[CAMSS_MCLK0_CLK] = &camss_mclk0_clk.clkr,
+	[CAMSS_MCLK1_CLK] = &camss_mclk1_clk.clkr,
+	[CAMSS_MICRO_AHB_CLK] = &camss_micro_ahb_clk.clkr,
+	[CAMSS_PHY0_CSI0PHYTIMER_CLK] = &camss_phy0_csi0phytimer_clk.clkr,
+	[CAMSS_PHY1_CSI1PHYTIMER_CLK] = &camss_phy1_csi1phytimer_clk.clkr,
+	[CAMSS_TOP_AHB_CLK] = &camss_top_ahb_clk.clkr,
+	[CAMSS_VFE_CPP_AHB_CLK] = &camss_vfe_cpp_ahb_clk.clkr,
+	[CAMSS_VFE_CPP_CLK] = &camss_vfe_cpp_clk.clkr,
+	[CAMSS_VFE_VFE0_CLK] = &camss_vfe_vfe0_clk.clkr,
+	[CAMSS_VFE_VFE_AHB_CLK] = &camss_vfe_vfe_ahb_clk.clkr,
+	[CAMSS_VFE_VFE_AXI_CLK] = &camss_vfe_vfe_axi_clk.clkr,
+	[MDSS_AHB_CLK] = &mdss_ahb_clk.clkr,
+	[MDSS_AXI_CLK] = &mdss_axi_clk.clkr,
+	[MDSS_BYTE0_CLK] = &mdss_byte0_clk.clkr,
+	[MDSS_ESC0_CLK] = &mdss_esc0_clk.clkr,
+	[MDSS_MDP_CLK] = &mdss_mdp_clk.clkr,
+	[MDSS_MDP_LUT_CLK] = &mdss_mdp_lut_clk.clkr,
+	[MDSS_PCLK0_CLK] = &mdss_pclk0_clk.clkr,
+	[MDSS_VSYNC_CLK] = &mdss_vsync_clk.clkr,
+	[MMSS_MISC_AHB_CLK] = &mmss_misc_ahb_clk.clkr,
+	[MMSS_MMSSNOC_AHB_CLK] = &mmss_mmssnoc_ahb_clk.clkr,
+	[MMSS_MMSSNOC_BTO_AHB_CLK] = &mmss_mmssnoc_bto_ahb_clk.clkr,
+	[MMSS_MMSSNOC_AXI_CLK] = &mmss_mmssnoc_axi_clk.clkr,
+	[MMSS_S0_AXI_CLK] = &mmss_s0_axi_clk.clkr,
+	[OCMEMCX_AHB_CLK] = &ocmemcx_ahb_clk.clkr,
+	[OXILI_OCMEMGX_CLK] = &oxili_ocmemgx_clk.clkr,
+	[OXILI_GFX3D_CLK] = &oxili_gfx3d_clk.clkr,
+	[OXILICX_AHB_CLK] = &oxilicx_ahb_clk.clkr,
+	[OXILICX_AXI_CLK] = &oxilicx_axi_clk.clkr,
+	[VENUS0_AHB_CLK] = &venus0_ahb_clk.clkr,
+	[VENUS0_AXI_CLK] = &venus0_axi_clk.clkr,
+	[VENUS0_VCODEC0_CLK] = &venus0_vcodec0_clk.clkr,
+};
+
+static const struct qcom_reset_map mmcc_msm8226_resets[] = {
+	[SPDM_RESET] = { 0x0200 },
+	[SPDM_RM_RESET] = { 0x0300 },
+	[VENUS0_RESET] = { 0x1020 },
+	[MDSS_RESET] = { 0x2300 },
+};
+
+static struct gdsc *mmcc_msm8226_gdscs[] = {
+	[VENUS0_GDSC] = &venus0_gdsc,
+	[MDSS_GDSC] = &mdss_gdsc,
+	[CAMSS_JPEG_GDSC] = &camss_jpeg_gdsc,
+	[CAMSS_VFE_GDSC] = &camss_vfe_gdsc,
+};
+
+static const struct regmap_config mmcc_msm8226_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= 0x5104,
+	.fast_io	= true,
+};
+
+static const struct qcom_cc_desc mmcc_msm8226_desc = {
+	.config = &mmcc_msm8226_regmap_config,
+	.clks = mmcc_msm8226_clocks,
+	.num_clks = ARRAY_SIZE(mmcc_msm8226_clocks),
+	.resets = mmcc_msm8226_resets,
+	.num_resets = ARRAY_SIZE(mmcc_msm8226_resets),
+	.gdscs = mmcc_msm8226_gdscs,
+	.num_gdscs = ARRAY_SIZE(mmcc_msm8226_gdscs),
+};
+
 static struct clk_regmap *mmcc_msm8974_clocks[] = {
 	[MMSS_AHB_CLK_SRC] = &mmss_ahb_clk_src.clkr,
 	[MMSS_AXI_CLK_SRC] = &mmss_axi_clk_src.clkr,
@@ -2569,23 +2744,44 @@ static const struct qcom_cc_desc mmcc_msm8974_desc = {
 };
 
 static const struct of_device_id mmcc_msm8974_match_table[] = {
-	{ .compatible = "qcom,mmcc-msm8974" },
+	{ .compatible = "qcom,mmcc-msm8226", .data = &mmcc_msm8226_desc },
+	{ .compatible = "qcom,mmcc-msm8974", .data = &mmcc_msm8974_desc },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, mmcc_msm8974_match_table);
 
+static void msm8226_clock_override(void)
+{
+	mmss_axi_clk_src.freq_tbl = ftbl_mmss_axi_clk_msm8226;
+	vfe0_clk_src.freq_tbl = ftbl_camss_vfe_vfe0_clk_msm8226;
+	mdp_clk_src.freq_tbl = ftbl_mdss_mdp_clk_msm8226;
+	vcodec0_clk_src.freq_tbl = ftbl_venus0_vcodec0_clk_msm8226;
+	mclk0_clk_src.freq_tbl = ftbl_camss_mclk0_3_clk_msm8226;
+	mclk1_clk_src.freq_tbl = ftbl_camss_mclk0_3_clk_msm8226;
+	cpp_clk_src.freq_tbl = ftbl_camss_vfe_cpp_clk_msm8226;
+}
+
 static int mmcc_msm8974_probe(struct platform_device *pdev)
 {
 	struct regmap *regmap;
+	const struct qcom_cc_desc *desc;
+
+	desc = of_device_get_match_data(&pdev->dev);
+	if (!desc)
+		return -EINVAL;
 
-	regmap = qcom_cc_map(pdev, &mmcc_msm8974_desc);
+	regmap = qcom_cc_map(pdev, desc);
 	if (IS_ERR(regmap))
 		return PTR_ERR(regmap);
 
-	clk_pll_configure_sr_hpm_lp(&mmpll1, regmap, &mmpll1_config, true);
-	clk_pll_configure_sr_hpm_lp(&mmpll3, regmap, &mmpll3_config, false);
+	if (desc == &mmcc_msm8974_desc) {
+		clk_pll_configure_sr_hpm_lp(&mmpll1, regmap, &mmpll1_config, true);
+		clk_pll_configure_sr_hpm_lp(&mmpll3, regmap, &mmpll3_config, false);
+	} else {
+		msm8226_clock_override();
+	}
 
-	return qcom_cc_really_probe(pdev, &mmcc_msm8974_desc, regmap);
+	return qcom_cc_really_probe(pdev, desc, regmap);
 }
 
 static struct platform_driver mmcc_msm8974_driver = {
-- 
2.25.1