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misc: rtsx: Fix OCP function for RTS5261 

This patch fix the bug that when there is over current but
reader can't enable OCP.

Signed-off-by: Rui Feng <rui_feng@realsil.com.cn>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/1604397278-2815-1-git-send-email-rui_feng@realsil.com.cn
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Rui Feng 2020-11-03 17:54:38 +08:00 committed by Ulf Hansson
parent 6b7b58f425
commit c28e3fb28f
1 changed files with 6 additions and 2 deletions
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8
drivers/misc/cardreader/rts5261.c
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@ -272,6 +272,9 @@ static void rts5261_enable_ocp(struct rtsx_pcr *pcr)
u8 val = 0;
val = SD_OCP_INT_EN | SD_DETECT_EN;
rtsx_pci_write_register(pcr, RTS5261_LDO1_CFG0,
RTS5261_LDO1_OCP_EN | RTS5261_LDO1_OCP_LMT_EN,
RTS5261_LDO1_OCP_EN | RTS5261_LDO1_OCP_LMT_EN);
rtsx_pci_write_register(pcr, REG_OCPCTL, 0xFF, val);
}
@ -340,7 +343,7 @@ static void rts5261_clear_ocpstat(struct rtsx_pcr *pcr)
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
udelay(10);
udelay(1000);
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
}
@ -353,9 +356,9 @@ static void rts5261_process_ocp(struct rtsx_pcr *pcr)
rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
if (pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
rts5261_clear_ocpstat(pcr);
rts5261_card_power_off(pcr, RTSX_SD_CARD);
rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
rts5261_clear_ocpstat(pcr);
pcr->ocp_stat = 0;
}
@ -513,6 +516,7 @@ static int rts5261_extra_init_hw(struct rtsx_pcr *pcr)
rtsx_pci_write_register(pcr, PETXCFG,
FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH);
rtsx_pci_write_register(pcr, PWD_SUSPEND_EN, 0xFF, 0xFB);
rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x10, 0x00);
rtsx_pci_write_register(pcr, RTS5261_REG_PME_FORCE_CTL,
FORCE_PM_CONTROL | FORCE_PM_VALUE, FORCE_PM_CONTROL);