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From: Marek Vasut <marex@denx.de>
To: dri-devel@lists.freedesktop.org
Cc: Marek Vasut <marex@denx.de>, Abel Vesa <abelvesa@kernel.org>,
	Andrzej Hajda <andrzej.hajda@intel.com>,
	David Airlie <airlied@gmail.com>,
	Fabio Estevam <festevam@gmail.com>,
	Isaac Scott <isaac.scott@ideasonboard.com>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Peng Fan <peng.fan@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Robert Foss <rfoss@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Shawn Guo <shawnguo@kernel.org>, Simona Vetter <simona@ffwll.ch>,
	Stephen Boyd <sboyd@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	imx@lists.linux.dev, kernel@dh-electronics.com,
	linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org
Subject: [PATCH 1/2] clk: imx: clk-imx8mp: Allow LDB serializer clock reconfigure parent rate
Date: Wed,  9 Oct 2024 00:38:19 +0200	[thread overview]
Message-ID: <20241008223846.337162-1-marex@denx.de> (raw)

The media_ldb_root_clk supply LDB serializer. These clock are usually
shared with the LCDIFv3 pixel clock and supplied by the Video PLL on
i.MX8MP, but the LDB clock run at either x7 or x14 rate of the LCDIFv3
pixel clock. Allow the LDB to reconfigure Video PLL as needed, as that
results in accurate serializer clock.

Signed-off-by: Marek Vasut <marex@denx.de>
---
Cc: Abel Vesa <abelvesa@kernel.org>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Isaac Scott <isaac.scott@ideasonboard.com>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Simona Vetter <simona@ffwll.ch>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: dri-devel@lists.freedesktop.org
Cc: imx@lists.linux.dev
Cc: kernel@dh-electronics.com
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-clk@vger.kernel.org
---
 drivers/clk/imx/clk-imx8mp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
index 516dbd170c8a3..2e61d340b8ab7 100644
--- a/drivers/clk/imx/clk-imx8mp.c
+++ b/drivers/clk/imx/clk-imx8mp.c
@@ -611,7 +611,7 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
 	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_bus_flags("media_disp1_pix", imx8mp_media_disp_pix_sels, ccm_base + 0xbe00, CLK_SET_RATE_PARENT);
 	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_MEDIA_LDB] = imx8m_clk_hw_composite_bus_flags("media_ldb", imx8mp_media_ldb_sels, ccm_base + 0xbf00, CLK_SET_RATE_PARENT);
 	hws[IMX8MP_CLK_MEMREPAIR] = imx8m_clk_hw_composite_critical("mem_repair", imx8mp_memrepair_sels, ccm_base + 0xbf80);
 	hws[IMX8MP_CLK_MEDIA_MIPI_TEST_BYTE] = imx8m_clk_hw_composite("media_mipi_test_byte", imx8mp_media_mipi_test_byte_sels, ccm_base + 0xc100);
 	hws[IMX8MP_CLK_ECSPI3] = imx8m_clk_hw_composite("ecspi3", imx8mp_ecspi3_sels, ccm_base + 0xc180);
-- 
2.45.2



             reply	other threads:[~2024-10-08 22:41 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-08 22:38 Marek Vasut [this message]
2024-10-08 22:38 ` [PATCH 2/2] drm: bridge: ldb: Configure LDB clock in .mode_set Marek Vasut
2024-10-09 10:27   ` Isaac Scott
2024-10-09 15:41     ` Marek Vasut
2024-10-10  7:15   ` Liu Ying
2024-10-11  1:59     ` Marek Vasut
2024-10-11  6:49       ` Liu Ying
2024-10-12 21:12         ` Marek Vasut
2024-10-22  5:59           ` Liu Ying
2024-10-23  0:55             ` Marek Vasut
2024-10-23  5:03               ` Liu Ying
2024-10-09 11:40 ` [PATCH 1/2] clk: imx: clk-imx8mp: Allow LDB serializer clock reconfigure parent rate Abel Vesa
2024-10-09 15:43   ` Marek Vasut
2024-10-10  5:22 ` Liu Ying
2024-10-11  1:55   ` Marek Vasut
2024-10-11  6:18     ` Liu Ying
2024-10-12 21:07       ` Marek Vasut
2024-10-22  6:13         ` Liu Ying
2024-10-22  7:50           ` Maxime Ripard
2024-10-31  2:35             ` Liu Ying
2024-11-18 15:46               ` Maxime Ripard
2024-11-19  2:09                 ` Liu Ying
2024-10-23  0:50           ` Marek Vasut
2024-10-23  5:25             ` Liu Ying
2024-11-21  2:47               ` Marek Vasut

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