On Mon, Feb 17, 2025 at 02:37:31PM +0100, Krzysztof Kozlowski wrote: > On 17/02/2025 14:13, Dmitry Baryshkov wrote: > > On Mon, Feb 17, 2025 at 12:53:17PM +0100, Krzysztof Kozlowski wrote: > >> Add bitfields for PHY_CMN_CLK_CFG0 and PHY_CMN_CLK_CFG1 registers to > >> avoid hard-coding bit masks and shifts and make the code a bit more > >> readable. While touching the lines in dsi_7nm_pll_save_state() > >> resulting cached->pix_clk_div assignment would be too big, so just > >> combine pix_clk_div and bit_clk_div into one cached state to make > >> everything simpler. > >> > >> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> > >> > >> --- > >> > >> Changes in v4: > >> 1. Add mising bitfield.h include > >> 2. One more FIELD_GET and DSI_7nm_PHY_CMN_CLK_CFG1_DSICLK_SEL (Dmitry) > >> > >> Changes in v3: > >> 1. Use FIELD_GET > >> 2. Keep separate bit_clk_div and pix_clk_div > >> 3. Rebase (some things moved to previous patches) > >> > >> Changes in v2: > >> 1. New patch > >> --- > >> drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c | 13 ++++++++----- > >> drivers/gpu/drm/msm/registers/display/dsi_phy_7nm.xml | 1 + > >> 2 files changed, 9 insertions(+), 5 deletions(-) > >> > >> @@ -739,7 +741,8 @@ static int pll_7nm_register(struct dsi_pll_7nm *pll_7nm, struct clk_hw **provide > >> u32 data; > >> > >> data = readl(pll_7nm->phy->base + REG_DSI_7nm_PHY_CMN_CLK_CFG1); > >> - writel(data | 3, pll_7nm->phy->base + REG_DSI_7nm_PHY_CMN_CLK_CFG1); > >> + writel(data | DSI_7nm_PHY_CMN_CLK_CFG1_DSICLK_SEL(3), > >> + pll_7nm->phy->base + REG_DSI_7nm_PHY_CMN_CLK_CFG1); > > > > Nit: should this also be using dsi_pll_cmn_clk_cfg1_update() ? > > > This is before clocks are registered so there is really no chance for > simultaneous access. > > It is rather then question of code readability or obviousness. That's why I added it as a nit. I don't think that it's required, but I think it might improve the patch. -- With best wishes Dmitry
