diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt8188-topckgen.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8188-topckgen.c | 42 |
1 files changed, 24 insertions, 18 deletions
diff --git a/drivers/clk/mediatek/clk-mt8188-topckgen.c b/drivers/clk/mediatek/clk-mt8188-topckgen.c index d2eba2d6af8d..6b07abe9a8f5 100644 --- a/drivers/clk/mediatek/clk-mt8188-topckgen.c +++ b/drivers/clk/mediatek/clk-mt8188-topckgen.c @@ -5,7 +5,7 @@ */ #include <dt-bindings/clock/mediatek,mt8188-clk.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include "clk-gate.h" @@ -342,11 +342,14 @@ static const char * const dsp7_parents[] = { "univpll_d3" }; +/* + * MFG can be also parented to "univpll_d6" and "univpll_d7": + * these have been removed from the parents list to let us + * achieve GPU DVFS without any special clock handlers. + */ static const char * const mfg_core_tmp_parents[] = { "clk26m", - "mainpll_d5_d2", - "univpll_d6", - "univpll_d7" + "mainpll_d5_d2" }; static const char * const camtg_parents[] = { @@ -475,29 +478,28 @@ static const char * const sspm_parents[] = { "mainpll_d4_d2" }; +/* + * Both DP/eDP can be parented to TVDPLL1 and TVDPLL2, but we force using + * TVDPLL1 on eDP and TVDPLL2 on DP to avoid changing the "other" PLL rate + * in dual output case, which would lead to corruption of functionality loss. + */ static const char * const dp_parents[] = { "clk26m", - "tvdpll1_d2", "tvdpll2_d2", - "tvdpll1_d4", "tvdpll2_d4", - "tvdpll1_d8", "tvdpll2_d8", - "tvdpll1_d16", "tvdpll2_d16" }; +static const u8 dp_parents_idx[] = { 0, 2, 4, 6, 8 }; static const char * const edp_parents[] = { "clk26m", "tvdpll1_d2", - "tvdpll2_d2", "tvdpll1_d4", - "tvdpll2_d4", "tvdpll1_d8", - "tvdpll2_d8", - "tvdpll1_d16", - "tvdpll2_d16" + "tvdpll1_d16" }; +static const u8 edp_parents_idx[] = { 0, 1, 3, 5, 7 }; static const char * const dpi_parents[] = { "clk26m", @@ -1038,10 +1040,12 @@ static const struct mtk_mux top_mtk_muxes[] = { MUX_GATE_CLR_SET_UPD(CLK_TOP_SSPM, "top_sspm", sspm_parents, 0x080, 0x084, 0x088, 24, 4, 31, 0x08, 3), /* CLK_CFG_9 */ - MUX_GATE_CLR_SET_UPD(CLK_TOP_DP, "top_dp", - dp_parents, 0x08C, 0x090, 0x094, 0, 4, 7, 0x08, 4), - MUX_GATE_CLR_SET_UPD(CLK_TOP_EDP, "top_edp", - edp_parents, 0x08C, 0x090, 0x094, 8, 4, 15, 0x08, 5), + MUX_GATE_CLR_SET_UPD_INDEXED(CLK_TOP_DP, "top_dp", + dp_parents, dp_parents_idx, 0x08C, 0x090, 0x094, + 0, 4, 7, 0x08, 4), + MUX_GATE_CLR_SET_UPD_INDEXED(CLK_TOP_EDP, "top_edp", + edp_parents, edp_parents_idx, 0x08C, 0x090, 0x094, + 8, 4, 15, 0x08, 5), MUX_GATE_CLR_SET_UPD(CLK_TOP_DPI, "top_dpi", dpi_parents, 0x08C, 0x090, 0x094, 16, 4, 23, 0x08, 6), MUX_GATE_CLR_SET_UPD(CLK_TOP_DISP_PWM0, "top_disp_pwm0", @@ -1346,11 +1350,13 @@ static void clk_mt8188_topck_remove(struct platform_device *pdev) static struct platform_driver clk_mt8188_topck_drv = { .probe = clk_mt8188_topck_probe, - .remove_new = clk_mt8188_topck_remove, + .remove = clk_mt8188_topck_remove, .driver = { .name = "clk-mt8188-topck", .of_match_table = of_match_clk_mt8188_topck, }, }; module_platform_driver(clk_mt8188_topck_drv); + +MODULE_DESCRIPTION("MediaTek MT8188 top clock generators driver"); MODULE_LICENSE("GPL"); |