[PATCH 0/6] phy: rockchip: samsung-hdptx: Clock fixes and API transition cleanups

Cristian Ciocaltea cristian.ciocaltea at collabora.com
Fri Feb 27 12:48:44 PST 2026


This series provides a set of bug fixes and cleanups for the Rockchip
Samsung HDPTX PHY driver.

The first part of the series (i.e. PATCH 1 & 2) addresses clock rate
calculation and synchronization issues.  Specifically, it fixes edge
cases where the PHY PLL is pre-programmed by an external component (like
a bootloader) or when changing the color depth (bpc) while keeping the
modeline constant.  Because the Common Clock Framework .set_rate()
callback might not be invoked if the pixel clock remains unchanged, this
previously led to out-of-sync states between CCF and the actual HDMI PHY
configuration.

The second part focuses on code cleanups and modernizing the register
access.  Now that dw_hdmi_qp driver has fully switched to using
phy_configure(), we can drop the deprecated TMDS rate setup workarounds
and the restrict_rate_change flag logic.  Finally, it refactors the
driver to consistently use standard bitfield macros.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea at collabora.com>
---
Cristian Ciocaltea (6):
      phy: rockchip: samsung-hdptx: Fix rate recalculation for high bpc
      phy: rockchip: samsung-hdptx: Handle uncommitted PHY config changes
      phy: rockchip: samsung-hdptx: Drop TMDS rate setup workaround
      phy: rockchip: samsung-hdptx: Drop restrict_rate_change handling
      phy: rockchip: samsung-hdptx: Simplify GRF access with FIELD_PREP_WM16()
      phy: rockchip: samsung-hdptx: Consistently use bitfield macros

 drivers/phy/rockchip/phy-rockchip-samsung-hdptx.c | 215 +++++++++-------------
 1 file changed, 92 insertions(+), 123 deletions(-)
---
base-commit: 7d6661873f6b54c75195780a40d66bad3d482d8f
change-id: 20260227-hdptx-clk-fixes-47426632f862




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