backlight/ld9040.c: regulator control in the lcd driver

On Fri, Dec 2, 2011 at 8:45 AM, leedonghwa [off-list ref] wrote:

[From your mail headers]

X-Mailer: Microsoft Office Outlook 12.0

No please. That mailer does not work, all your whitespace is screwed up.
Consult: Documentation/email-clients.txt

This patch supports regulator power control in the driver.

Always CC the regulator maintainers on patches like this please.

+???????? lcd->reg_vdd3 = regulator_get(lcd->dev, "vdd");
+???????? if (IS_ERR(lcd->reg_vdd3)) {
+?????????????????? dev_info(lcd->dev, "no %s regulator found\n", "vdd");
+?????????????????? lcd->reg_vdd3 = NULL;
+???????? }
+
+???????? lcd->reg_vci = regulator_get(lcd->dev, "vci");
+???????? if (IS_ERR(lcd->reg_vci)) {
+?????????????????? dev_info(lcd->dev, "no %s regulator found\n", "vci");
+?????????????????? lcd->reg_vci = NULL;
+???????? }

As explained in earlier discussion with Mark regarding the SMSC911x
driver regulator, treat these as errors and do not fail
"gracefully" like this.

Reference:
http://marc.info/?l=linux-netdev&m=131914562120725&w=2

Yours,
Linus Walleij