mfd: rtsx: Add shutdown callback in rtsx_pci_driver
Some actions to clear power state should be handled in .shutdown
callback in rtsx_pci_driver. This patch adopts the following measures to
catch this goal:
1. Add a function rtsx_pci_power_off to abstract the common ops in
.shutdown and .suspend
2. Add pcr->ops->force_power_down to fulfill the individual action for
each reader model
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
index d5db182..79ff212 100644
--- a/drivers/mfd/rts5249.c
+++ b/drivers/mfd/rts5249.c
@@ -88,6 +88,16 @@
pcr->flags |= PCR_REVERSE_SOCKET;
}
+static void rts5249_force_power_down(struct rtsx_pcr *pcr)
+{
+ /* Set relink_time to 0 */
+ rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
+ rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
+ rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
+
+ rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
+}
+
static int rts5249_extra_init_hw(struct rtsx_pcr *pcr)
{
rtsx_pci_init_cmd(pcr);
@@ -217,6 +227,7 @@
.card_power_on = rts5249_card_power_on,
.card_power_off = rts5249_card_power_off,
.switch_output_voltage = rts5249_switch_output_voltage,
+ .force_power_down = rts5249_force_power_down,
};
/* SD Pull Control Enable: