Various parameters of SM501 can be set using platform_data,
so parameters cannot be passed in the DeviceTree target.
Expands the parameters set in platform_data so that they can be
specified using DeviceTree properties.
Signed-off-by: Yoshinori Sato
---
drivers/mfd/sm501.c | 436 ++
drivers/video/fbdev/sm501fb.c | 106 +
2 files changed, 542 insertions(+)
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 28027982cf69..3408778e0048 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -82,6 +82,23 @@ struct sm501_devdata {
unsigned int rev;
};
+enum prop_type {
+ PROP_NUM, PROP_STR,
+};
+
+enum val_type {
+ ENDIS, MT_EX, MT_XC, MT_SSM, MT_SM, MT_DEBUG, MT_DIV, MT_USB, MT_DELAY,
+ MC_PAD, MC_USBCLK, MC_SSP, MC_FP, MC_FREQ, MC_REFRESH, MC_HOLD, MC_SH,
+ MC_II, MC_GAP, MC_DAC, MC_MC, MC_BL, MC_USB, MC_LB, MC_VR,
+};
+
+struct sm501_config_props {
+ char *name;
+ u32 shift;
+ u32 width;
+ enum prop_type prop_type;
+ enum val_type val_type;
+};
#define MHZ (1000 * 1000)
@@ -1370,6 +1387,419 @@ static int sm501_init_dev(struct sm501_devdata *sm)
return 0;
}
+static u32 lookup_str(const char *val, const char * const *list)
+{
+ u32 ret = 0;
+
+ while (*list) {
+ if (strcmp(val, *list) == 0)
+ return ret;
+ list++;
+ ret++;
+ }
+ return ~0;
+}
+
+static u32 lookup_num(u32 val, const u32 *list)
+{
+ u32 ret = 0;
+
+ while (*list != ~0) {
+ if (val == *list)
+ return ret;
+ list++;
+ ret++;
+ }
+ return ~0;
+}
+
+static const struct sm501_config_props misc_timming[] = {
+ {"ex", 28, 4, PROP_NUM, MT_EX},
+ {"xc", 24, 2, PROP_STR, MT_XC},
+ {"us", 23, 1, PROP_STR, ENDIS},
+ {"ssm1",20, 1, PROP_STR, MT_SSM},
+ {"sm1", 16, 4, PROP_NUM, MT_SM},
+ {"ssm0",12, 1, PROP_STR, MT_SSM},
+ {"sm0", 8, 4, PROP_NUM, MT_SM},
+ {"deb", 7, 1, PROP_STR, MT_DEBUG},
+ {"acpi", 6, 1, PROP_STR, ENDIS},
+ {"divider", 4, 2, PROP_NUM, MT_DIV},
+ {"usb-mode", 3, 1, PROP_STR, MT_USB},
+ {"delay",0, 3, PROP_NUM, MT_DELAY},
+ {},
+};
+
+static const struct sm501_config_props misc_control[] = {
+ {"pad", 30, 2, PROP_NUM, MC_PAD},
+ {"usbclk", 28, 2, PROP_STR, MC_USBCLK},
+ {"uart-ssp", 27, 1, PROP_STR, MC_SSP},
+ {"lat", 26, 1, PROP_STR, ENDIS},
+ {"fp", 25, 1, PROP_NUM, MC_FP},
+ {"freq", 24, 1, PROP_NUM, MC_FREQ},
+ {"refresh", 21, 2, PROP_NUM, MC_REFRESH},
+ {"hold", 18, 3, PROP_NUM, MC_HOLD},
+ {"sh", 17, 1, PROP_STR, MC_SH},
+ {"ii", 16, 1, PROP_STR, MC_II},
+ {"pll", 15, 1, PROP_STR, ENDIS},
+ {"gap", 13, 2, PROP_STR, MC_GAP},
+ {"dac", 12, 1, PROP_STR, MC_DAC},
+ {"mc", 11, 1, PROP_STR, MC_MC},
+ {"bl", 10, 1, PROP_NUM, MC_BL},
+ {"usb", 9, 1, PROP_STR, MC_USB},
+ {"lb",8, 1, PROP_STR, MC_LB},
+ {"vr",4, 1, PROP_NUM, MC_VR},
+ {},
+};
+
+/* Read configuration values */
+static void sm501_of_read_config(struct device *dev, struct device_node *np,
+const char *prefix,
+const struct sm501_config_props *props,
+struct sm501_reg_init *ret)
+{
+ static const char * const endis[] = { "disable", "enable", NULL };
+ static const char * const xc[] = { "internal-pll", "hclk", "gpio33",
NULL };
+ static const char * const ssm[] = { "288mhz", "div", NULL };
+ static const char * const debmode[] = { "input-reference", "output",
NULL };
+ static const char * const usbmode[] = { "normal", "simulation", NULL };
+ static const char * const usbclk[] = { "crystal", "-", "96mhz",
"48mhz", NULL };
+ static const char * const ssp[] = { "uart1", "ssp1", NULL };
+ static const char * const sh_ready[] = { "active-low", "active-high",
NULL };
+ static const char * const int_invert[] = { "normal", "invert", NULL };
+ static const char * const slave[] = { "cpu", "8051", NULL };
+ static const char * const usbport[] = { "master", "slave", NULL };
+ static const char * const usbloop[] = { "normal", "loopback", NULL };
+
+ static const u32 divrate[] = { 336, 288, 240, 192, ~0 };
+ static const u32 fpdata[] = { 18, 24, ~0 };
+ static const u32 cfreq[] = { 24, 12, ~0 };
+ static const u32 bushold[] = { 0, 8, 16, 24, 32, ~0 };
+ static const u32 burst[] = { 8, 1, ~0 };
+ static const u32 vrmem[] = { 30, 62, ~0 };
+
+ struct device_node *child;
+ const char *sval;
+ u32 mask;
+ u32 val;
