clk: imx8mp: Add DISP2 pixel clock

Add pixel clock for second LCDIFv3 interface. Both LCDIFv3 interfaces use
the same set of parent clock, so deduplicate imx8mp_media_disp1_pix_sels
into common imx8mp_media_disp_pix_sels and use it for both.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Abel Vesa <abel.vesa@nxp.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
Link: https://lore.kernel.org/r/20220313123949.207284-1-marex@denx.de
Signed-off-by: Abel Vesa <abel.vesa@nxp.com>

Author: Marek Vasut

drivers/clk/imx/clk-imx8mp.c

@@ -358,7 +358,7 @@ static const char * const imx8mp_media_mipi_phy1_ref_sels[] = {"osc_24m", "sys_p
 							       "clk_ext2", "audio_pll2_out",
 							       "video_pll1_out", };
 
-static const char * const imx8mp_media_disp1_pix_sels[] = {"osc_24m", "video_pll1_out", "audio_pll2_out",
+static const char * const imx8mp_media_disp_pix_sels[] = {"osc_24m", "video_pll1_out", "audio_pll2_out",
 							   "audio_pll1_out", "sys_pll1_800m",
 							   "sys_pll2_1000m", "sys_pll3_out", "clk_ext4", };
 
@@ -538,6 +538,7 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MP_CLK_AHB] = imx8m_clk_hw_composite_bus_critical("ahb_root", imx8mp_ahb_sels, ccm_base + 0x9000);
 	hws[IMX8MP_CLK_AUDIO_AHB] = imx8m_clk_hw_composite_bus("audio_ahb", imx8mp_audio_ahb_sels, ccm_base + 0x9100);
 	hws[IMX8MP_CLK_MIPI_DSI_ESC_RX] = imx8m_clk_hw_composite_bus("mipi_dsi_esc_rx", imx8mp_mipi_dsi_esc_rx_sels, ccm_base + 0x9200);
+	hws[IMX8MP_CLK_MEDIA_DISP2_PIX] = imx8m_clk_hw_composite("media_disp2_pix", imx8mp_media_disp_pix_sels, ccm_base + 0x9300);
 
 	hws[IMX8MP_CLK_IPG_ROOT] = imx_clk_hw_divider2("ipg_root", "ahb_root", ccm_base + 0x9080, 0, 1);
 
@@ -600,7 +601,7 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MP_CLK_USDHC3] = imx8m_clk_hw_composite("usdhc3", imx8mp_usdhc3_sels, ccm_base + 0xbc80);
 	hws[IMX8MP_CLK_MEDIA_CAM1_PIX] = imx8m_clk_hw_composite("media_cam1_pix", imx8mp_media_cam1_pix_sels, ccm_base + 0xbd00);
 	hws[IMX8MP_CLK_MEDIA_MIPI_PHY1_REF] = imx8m_clk_hw_composite("media_mipi_phy1_ref", imx8mp_media_mipi_phy1_ref_sels, ccm_base + 0xbd80);
-	hws[IMX8MP_CLK_MEDIA_DISP1_PIX] = imx8m_clk_hw_composite("media_disp1_pix", imx8mp_media_disp1_pix_sels, ccm_base + 0xbe00);
+	hws[IMX8MP_CLK_MEDIA_DISP1_PIX] = imx8m_clk_hw_composite("media_disp1_pix", imx8mp_media_disp_pix_sels, ccm_base + 0xbe00);
 	hws[IMX8MP_CLK_MEDIA_CAM2_PIX] = imx8m_clk_hw_composite("media_cam2_pix", imx8mp_media_cam2_pix_sels, ccm_base + 0xbe80);
 	hws[IMX8MP_CLK_MEDIA_LDB] = imx8m_clk_hw_composite("media_ldb", imx8mp_media_ldb_sels, ccm_base + 0xbf00);
 	hws[IMX8MP_CLK_MEMREPAIR] = imx8m_clk_hw_composite_critical("mem_repair", imx8mp_memrepair_sels, ccm_base + 0xbf80);

include/dt-bindings/clock/imx8mp-clock.h

@@ -318,7 +318,9 @@
 #define IMX8MP_CLK_HSIO_AXI			311
 #define IMX8MP_CLK_MEDIA_ISP			312
 
-#define IMX8MP_CLK_END				313
+#define IMX8MP_CLK_MEDIA_DISP2_PIX		313
+
+#define IMX8MP_CLK_END				314
 
 #define IMX8MP_CLK_AUDIOMIX_SAI1_IPG		0
 #define IMX8MP_CLK_AUDIOMIX_SAI1_MCLK1		1