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pcmcia: soc_common: add support for voltage sense GPIOs 

Add support for the voltage sense GPIOs which are wired up on some
platforms.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2016-08-31 11:28:19 +01:00
parent c8f9ce556b
commit 5805271d90
2 changed files with 8 additions and 2 deletions
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6
drivers/pcmcia/soc_common.c
View File

@ -218,7 +218,7 @@ static int soc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
skt->stat[i].desc = gpio_to_desc(skt->stat[i].gpio);
}
if (skt->stat[i].desc) {
if (i < SOC_STAT_VS1 && skt->stat[i].desc) {
int irq = gpiod_to_irq(skt->stat[i].desc);
if (irq > 0) {
@ -295,6 +295,10 @@ static unsigned int soc_common_pcmcia_skt_state(struct soc_pcmcia_socket *skt)
state.bvd1 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD1].desc);
if (skt->stat[SOC_STAT_BVD2].desc)
state.bvd2 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD2].desc);
if (skt->stat[SOC_STAT_VS1].desc)
state.vs_3v = !!gpiod_get_value(skt->stat[SOC_STAT_VS1].desc);
if (skt->stat[SOC_STAT_VS2].desc)
state.vs_Xv = !!gpiod_get_value(skt->stat[SOC_STAT_VS2].desc);
skt->ops->socket_state(skt, &state);

4
drivers/pcmcia/soc_common.h
View File

@ -62,11 +62,13 @@ struct soc_pcmcia_socket {
struct gpio_desc *desc;
unsigned int irq;
const char *name;
} stat[4];
} stat[6];
#define SOC_STAT_CD 0 /* Card detect */
#define SOC_STAT_BVD1 1 /* BATDEAD / IOSTSCHG */
#define SOC_STAT_BVD2 2 /* BATWARN / IOSPKR */
#define SOC_STAT_RDY 3 /* Ready / Interrupt */
#define SOC_STAT_VS1 4 /* Voltage sense 1 */
#define SOC_STAT_VS2 5 /* Voltage sense 2 */
struct gpio_desc *gpio_reset;
struct gpio_desc *gpio_bus_enable;