diff options
| author | Amy Maloche <amaloche@codeaurora.org> | 2013-08-13 16:29:39 -0700 |
|---|---|---|
| committer | Stephen Boyd <sboyd@codeaurora.org> | 2013-09-04 17:20:37 -0700 |
| commit | ead1f716dfb2875acab416db8c2183710d0855ab (patch) | |
| tree | c06ae314964a37700b0755be841dc06c5a13aebb /drivers/leds | |
| parent | 876638b78737acfe75fe833d16ba7891cd3000cd (diff) | |
leds: leds-qpnp: Set WLED string current sinks
Set correct current sink when 1, 2 or 3 strings are in use.
Also, when using debug dumps, print all relevant registers.
Change-Id: Ib9ae9a959c3fcee0dcbb7b2882434cc6bcd126a3
Signed-off-by: Amy Maloche <amaloche@codeaurora.org>
Diffstat (limited to 'drivers/leds')
| -rw-r--r-- | drivers/leds/leds-qpnp.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/leds/leds-qpnp.c b/drivers/leds/leds-qpnp.c index 51b8af82a14a..31efbd99429a 100644 --- a/drivers/leds/leds-qpnp.c +++ b/drivers/leds/leds-qpnp.c @@ -259,8 +259,10 @@ enum led_mode { }; static u8 wled_debug_regs[] = { + /* brightness registers */ + 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, /* common registers */ - 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4d, 0x4e, 0x4f, + 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, /* LED1 */ 0x60, 0x61, 0x62, 0x63, 0x66, @@ -1384,7 +1386,7 @@ static void qpnp_led_turn_off(struct qpnp_led_data *led) static int qpnp_wled_init(struct qpnp_led_data *led) { int rc, i; - u8 num_wled_strings; + u8 num_wled_strings, val = 0; num_wled_strings = led->wled_cfg->num_strings; @@ -1456,10 +1458,10 @@ static int qpnp_wled_init(struct qpnp_led_data *led) /* program current sink */ if (led->wled_cfg->cs_out_en) { + for (i = 0; i < led->wled_cfg->num_strings; i++) + val |= 1 << i; rc = qpnp_led_masked_write(led, WLED_CURR_SINK_REG(led->base), - WLED_CURR_SINK_MASK, - (((1 << led->wled_cfg->num_strings) - 1) - << WLED_CURR_SINK_SHFT)); + WLED_CURR_SINK_MASK, (val << WLED_CURR_SINK_SHFT)); if (rc) { dev_err(&led->spmi_dev->dev, "WLED curr sink reg write failed(%d)\n", rc); |