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spi: spi-msm-geni: Keep IO driving to Pads for SPI

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This change programs GENI output control register before starting
any SPI transfer after previous suspend. Seems we just need to
overwrite again though the value 0x7F is programmed from the
bootup time. May be post suspend it's losing contents OR some
thing going wrong from QUP to Pad output path.

Change-Id: Ifa8356ddf971eb2900710bac18d753a2bb942b9f
Signed-off-by: Mukesh Kumar Savaliya <quic_msavaliy@quicinc.com>
This commit is contained in:
Mukesh Kumar Savaliya 2023-02-17 12:04:46 +05:30 committed by Somesh Dey
parent 3033db1790
commit 32fce8b458
1 changed files with 6 additions and 0 deletions
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6
drivers/spi/spi-msm-geni.c
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@ -5,6 +5,7 @@
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
@ -2632,6 +2633,11 @@ static int spi_geni_runtime_resume(struct device *dev)
return ret;
}
ret = geni_se_resources_on(&geni_mas->spi_rsc);
geni_write_reg(0x7f, geni_mas->base, GENI_OUTPUT_CTRL);
/* Added 10 us delay to settle the write of the register as per HW team recommendation */
udelay(10);
enable_irq(geni_mas->irq);
if (geni_mas->gsi_mode)