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drm/bridge: samsung-dsim: Use HZ_PER_MHZ macro from units.h

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Drop the custom MHZ macro and replace it with HZ_PER_MHZ.

Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/r/20250527-samsung-dsim-v1-2-5be520d84fbb@pengutronix.de
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Philipp Zabel 2025-05-27 16:21:48 +02:00
parent bafc628678
commit b462b0ef4d
1 changed files with 12 additions and 14 deletions
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26
drivers/gpu/drm/bridge/samsung-dsim.c
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@ -20,6 +20,7 @@
#include <linux/of.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/units.h>
#include <video/mipi_display.h>
@ -558,10 +559,6 @@ static void samsung_dsim_reset(struct samsung_dsim *dsi)
samsung_dsim_write(dsi, DSIM_SWRST_REG, reset_val);
}
#ifndef MHZ
#define MHZ (1000 * 1000)
#endif
static unsigned long samsung_dsim_pll_find_pms(struct samsung_dsim *dsi,
unsigned long fin,
unsigned long fout,
@ -575,8 +572,8 @@ static unsigned long samsung_dsim_pll_find_pms(struct samsung_dsim *dsi,
u16 _m, best_m;
u8 _s, best_s;
p_min = DIV_ROUND_UP(fin, (driver_data->pll_fin_max * MHZ));
p_max = fin / (driver_data->pll_fin_min * MHZ);
p_min = DIV_ROUND_UP(fin, (driver_data->pll_fin_max * HZ_PER_MHZ));
p_max = fin / (driver_data->pll_fin_min * HZ_PER_MHZ);
for (_p = p_min; _p <= p_max; ++_p) {
for (_s = 0; _s <= 5; ++_s) {
@ -591,8 +588,8 @@ static unsigned long samsung_dsim_pll_find_pms(struct samsung_dsim *dsi,
tmp = (u64)_m * fin;
do_div(tmp, _p);
if (tmp < driver_data->min_freq * MHZ ||
tmp > driver_data->max_freq * MHZ)
if (tmp < driver_data->min_freq * HZ_PER_MHZ ||
tmp > driver_data->max_freq * HZ_PER_MHZ)
continue;
tmp = (u64)_m * fin;
@ -635,7 +632,7 @@ static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi,
* limit.
*/
fin = clk_get_rate(clk_get_parent(dsi->pll_clk));
while (fin > driver_data->pll_fin_max * MHZ)
while (fin > driver_data->pll_fin_max * HZ_PER_MHZ)
fin /= 2;
clk_set_rate(dsi->pll_clk, fin);
@ -661,10 +658,11 @@ static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi,
if (driver_data->has_freqband) {
static const unsigned long freq_bands[] = {
100 * MHZ, 120 * MHZ, 160 * MHZ, 200 * MHZ,
270 * MHZ, 320 * MHZ, 390 * MHZ, 450 * MHZ,
510 * MHZ, 560 * MHZ, 640 * MHZ, 690 * MHZ,
770 * MHZ, 870 * MHZ, 950 * MHZ,
100 * HZ_PER_MHZ, 120 * HZ_PER_MHZ, 160 * HZ_PER_MHZ,
200 * HZ_PER_MHZ, 270 * HZ_PER_MHZ, 320 * HZ_PER_MHZ,
390 * HZ_PER_MHZ, 450 * HZ_PER_MHZ, 510 * HZ_PER_MHZ,
560 * HZ_PER_MHZ, 640 * HZ_PER_MHZ, 690 * HZ_PER_MHZ,
770 * HZ_PER_MHZ, 870 * HZ_PER_MHZ, 950 * HZ_PER_MHZ,
};
int band;
@ -724,7 +722,7 @@ static int samsung_dsim_enable_clock(struct samsung_dsim *dsi)
esc_div = DIV_ROUND_UP(byte_clk, dsi->esc_clk_rate);
esc_clk = byte_clk / esc_div;
if (esc_clk > 20 * MHZ) {
if (esc_clk > 20 * HZ_PER_MHZ) {
++esc_div;
esc_clk = byte_clk / esc_div;
}