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Display CSR's DISPLAY_ENGINES_CLOCK_CONTROL register controls the selection of the clock feeding the display engine. Add clock gate support for the two CSRs. Signed-off-by: Peng Fan --- drivers/clk/imx/clk-imx95-blk-ctl.c | 50 ++++++++++++++++++++++++++++++++++++- 1 file changed, 49 insertions(+), 1 deletion(-) diff --git a/drivers/clk/imx/clk-imx95-blk-ctl.c b/drivers/clk/imx/clk-imx95-blk-ctl.c index 828ee0a81ff62c6e4f61eef350b9073f19f5351f..5fe582b0d4a9a197f2c1a49dc18f15ca83ccb4a4 100644 --- a/drivers/clk/imx/clk-imx95-blk-ctl.c +++ b/drivers/clk/imx/clk-imx95-blk-ctl.c @@ -1,8 +1,9 @@ // SPDX-License-Identifier: GPL-2.0 /* - * Copyright 2024 NXP + * Copyright 2024-2025 NXP */ +#include #include #include #include @@ -300,6 +301,51 @@ static const struct imx95_blk_ctl_dev_data hsio_blk_ctl_dev_data = { .clk_reg_offset = 0, }; +static const struct imx95_blk_ctl_clk_dev_data imx94_lvds_clk_dev_data[] = { + [IMX94_CLK_DISPMIX_LVDS_CLK_GATE] = { + .name = "lvds_clk_gate", + .parent_names = (const char *[]){ "ldbpll", }, + .num_parents = 1, + .reg = 0, + .bit_idx = 1, + .bit_width = 1, + .type = CLK_GATE, + .flags = CLK_SET_RATE_PARENT, + .flags2 = CLK_GATE_SET_TO_DISABLE, + }, +}; + +static const struct imx95_blk_ctl_dev_data imx94_lvds_csr_dev_data = { + .num_clks = ARRAY_SIZE(imx94_lvds_clk_dev_data), + .clk_dev_data = imx94_lvds_clk_dev_data, + .clk_reg_offset = 0, + .rpm_enabled = true, +}; + +static const char * const imx94_disp_engine_parents[] = { + "disppix", "ldb_pll_div7" +}; + +static const struct imx95_blk_ctl_clk_dev_data imx94_dispmix_csr_clk_dev_data[] = { + [IMX94_CLK_DISPMIX_CLK_SEL] = { + .name = "disp_clk_sel", + .parent_names = imx94_disp_engine_parents, + .num_parents = ARRAY_SIZE(imx94_disp_engine_parents), + .reg = 0, + .bit_idx = 1, + .bit_width = 1, + .type = CLK_MUX, + .flags = CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT, + }, +}; + +static const struct imx95_blk_ctl_dev_data imx94_dispmix_csr_dev_data = { + .num_clks = ARRAY_SIZE(imx94_dispmix_csr_clk_dev_data), + .clk_dev_data = imx94_dispmix_csr_clk_dev_data, + .clk_reg_offset = 0, + .rpm_enabled = true, +}; + static int imx95_bc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -474,6 +520,8 @@ static const struct of_device_id imx95_bc_of_match[] = { { .compatible = "nxp,imx95-hsio-blk-ctl", .data = &hsio_blk_ctl_dev_data }, { .compatible = "nxp,imx95-vpu-csr", .data = &vpublk_dev_data }, { .compatible = "nxp,imx95-netcmix-blk-ctrl", .data = &netcmix_dev_data}, + { .compatible = "nxp,imx94-lvds-csr", .data = &imx94_lvds_csr_dev_data }, + { .compatible = "nxp,imx94-display-csr", .data = &imx94_dispmix_csr_dev_data }, { /* Sentinel */ }, }; MODULE_DEVICE_TABLE(of, imx95_bc_of_match); -- 2.37.1