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soc: mediatek: mtk-svs: Check if SVS mode is available in the beginning

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The svs_init01() and svs_init02() functions are already checking if the
INIT01 and INIT02 modes are available - but that's done in for loops and
for each SVS bank.

Give those a shortcut to get out early if no SVS bank features the
desired init mode: this is especially done to avoid some locking in
the svs_init01(), but also to avoid multiple for loops to check the
same, when no bank supports a specific mode.

Link: https://lore.kernel.org/r/20231121125044.78642-17-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
This commit is contained in:
AngeloGioacchino Del Regno 2023-11-21 13:50:40 +01:00
parent b77f0c305a
commit b74cac09c0
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GPG Key ID: 9A3604CFAD978478
1 changed files with 16 additions and 0 deletions
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16
drivers/soc/mediatek/mtk-svs.c
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@ -1400,6 +1400,16 @@ static irqreturn_t svs_isr(int irq, void *data)
return IRQ_HANDLED;
}
static bool svs_mode_available(struct svs_platform *svsp, u8 mode)
{
int i;
for (i = 0; i < svsp->bank_max; i++)
if (svsp->banks[i].mode_support & mode)
return true;
return false;
}
static int svs_init01(struct svs_platform *svsp)
{
struct svs_bank *svsb;
@ -1408,6 +1418,9 @@ static int svs_init01(struct svs_platform *svsp)
int ret = 0, r;
u32 opp_freq, opp_vboot, buck_volt, idx, i;
if (!svs_mode_available(svsp, SVSB_MODE_INIT01))
return 0;
/* Keep CPUs' core power on for svs_init01 initialization */
cpuidle_pause_and_lock();
@ -1575,6 +1588,9 @@ static int svs_init02(struct svs_platform *svsp)
int ret;
u32 idx;
if (!svs_mode_available(svsp, SVSB_MODE_INIT02))
return 0;
for (idx = 0; idx < svsp->bank_max; idx++) {
svsb = &svsp->banks[idx];