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drm/stm/dw_mipi_dsi-stm: convert from round_rate() to determine_rate()

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The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.

Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Acked-by: Yannick Fertre <yannick.fertre@foss.st.com>
Link: https://lore.kernel.org/r/20250811-drm-clk-round-rate-v2-6-4a91ccf239cf@redhat.com
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
This commit is contained in:
Brian Masney
2025-08-11 06:56:10 -04:00
committed by Raphael Gallais-Pou
parent b1a122f404
commit 5ccf442ecd
1 changed files with 8 additions and 6 deletions
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14
drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
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@@ -274,8 +274,8 @@ static unsigned long dw_mipi_dsi_clk_recalc_rate(struct clk_hw *hw,
return (unsigned long)pll_out_khz * 1000;
}
static long dw_mipi_dsi_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
static int dw_mipi_dsi_clk_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct dw_mipi_dsi_stm *dsi = clk_to_dw_mipi_dsi_stm(hw);
unsigned int idf, ndiv, odf, pll_in_khz, pll_out_khz;
@@ -283,14 +283,14 @@ static long dw_mipi_dsi_clk_round_rate(struct clk_hw *hw, unsigned long rate,
DRM_DEBUG_DRIVER("\n");
pll_in_khz = (unsigned int)(*parent_rate / 1000);
pll_in_khz = (unsigned int)(req->best_parent_rate / 1000);
/* Compute best pll parameters */
idf = 0;
ndiv = 0;
odf = 0;
ret = dsi_pll_get_params(dsi, pll_in_khz, rate / 1000,
ret = dsi_pll_get_params(dsi, pll_in_khz, req->rate / 1000,
&idf, &ndiv, &odf);
if (ret)
DRM_WARN("Warning dsi_pll_get_params(): bad params\n");
@@ -298,7 +298,9 @@ static long dw_mipi_dsi_clk_round_rate(struct clk_hw *hw, unsigned long rate,
/* Get the adjusted pll out value */
pll_out_khz = dsi_pll_get_clkout_khz(pll_in_khz, idf, ndiv, odf);
return pll_out_khz * 1000;
req->rate = pll_out_khz * 1000;
return 0;
}
static int dw_mipi_dsi_clk_set_rate(struct clk_hw *hw, unsigned long rate,
@@ -351,7 +353,7 @@ static const struct clk_ops dw_mipi_dsi_stm_clk_ops = {
.disable = dw_mipi_dsi_clk_disable,
.is_enabled = dw_mipi_dsi_clk_is_enabled,
.recalc_rate = dw_mipi_dsi_clk_recalc_rate,
.round_rate = dw_mipi_dsi_clk_round_rate,
.determine_rate = dw_mipi_dsi_clk_determine_rate,
.set_rate = dw_mipi_dsi_clk_set_rate,
};