From: Manikandan Muralidharan <manikandan.m@microchip.com>
To: <maarten.lankhorst@linux.intel.com>, <mripard@kernel.org>,
<tzimmermann@suse.de>, <airlied@gmail.com>, <simona@ffwll.ch>,
<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
<claudiu.beznea@tuxon.dev>, <lee@kernel.org>,
<dri-devel@lists.freedesktop.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Cc: <manikandan.m@microchip.com>
Subject: [PATCH v3 0/4] Add LVDS display support and PLL handling
Date: Mon, 23 Feb 2026 15:49:16 +0530 [thread overview]
Message-ID: <20260223101920.284697-1-manikandan.m@microchip.com> (raw)
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Hi all,
This patch series adds LVDS display support for the Atmel HLCDC driver
and introduces ATMEL_XLCDC_CLKBYP flags and proper handling of the
LVDS PLL clock required for such panels.
The Atmel XLCDC IP supports multiple output types — Parallel RGB, MIPI
DSI, and LVDS. While the existing implementation handles RGB and MIPI
displays using the LCD generic clock (sys_clk), LVDS panels require the
dedicated LVDS PLL clock (lvds_pll_clk).Configuring the LVDS PLL clock
rate automatically based on the panel pixel clock, eliminates the need
for assigned-clock-rates entries in the device tree
Change logs are mentioned in individual patches
Dharma Balasubiramani (1):
drm: atmel-hlcdc: configure LVDS PLL clock rate for LVDS Displays
Manikandan Muralidharan (3):
mfd: atmel-hlcdc: fetch LVDS PLL clock for LVDS display
drm: atmel-hlcdc: bypass clock divider for LVDS displays
drm: atmel-hlcdc: add support for LVDS output formats
.../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 139 +++++++++++++-----
drivers/mfd/atmel-hlcdc.c | 13 +-
include/linux/mfd/atmel-hlcdc.h | 2 +
3 files changed, 118 insertions(+), 36 deletions(-)
--
2.25.1
next reply other threads:[~2026-02-23 10:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-23 10:19 Manikandan Muralidharan [this message]
2026-02-23 10:19 ` [PATCH v3 1/4] mfd: atmel-hlcdc: fetch LVDS PLL clock for LVDS display Manikandan Muralidharan
2026-03-06 12:20 ` (subset) " Lee Jones
2026-02-23 10:19 ` [PATCH v3 2/4] drm: atmel-hlcdc: configure LVDS PLL clock rate for LVDS Displays Manikandan Muralidharan
2026-02-23 10:19 ` [PATCH v3 3/4] drm: atmel-hlcdc: bypass clock divider for LVDS displays Manikandan Muralidharan
2026-02-23 10:19 ` [PATCH v3 4/4] drm: atmel-hlcdc: add support for LVDS output formats Manikandan Muralidharan
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