From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Rini Date: Fri, 14 Sep 2012 10:24:49 -0700 Subject: [U-Boot] [PATCH 10/16] pmic:max8997: Function for calculating LDO internal register value In-Reply-To: <1347637215-4830-11-git-send-email-l.majewski@samsung.com> References: <1347637215-4830-1-git-send-email-l.majewski@samsung.com> <1347637215-4830-11-git-send-email-l.majewski@samsung.com> Message-ID: <20120914172449.GC22028@bill-the-cat> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Fri, Sep 14, 2012 at 05:40:09PM +0200, Lukasz Majewski wrote: > Function for calculating LDO internal register value from passed micro > Volt. > > Signed-off-by: Lukasz Majewski > Signed-off-by: Kyungmin Park > Cc: Stefano Babic > --- > drivers/misc/pmic_max8997.c | 17 +++++++++++++++++ > 1 files changed, 17 insertions(+), 0 deletions(-) > > diff --git a/drivers/misc/pmic_max8997.c b/drivers/misc/pmic_max8997.c > index 4e8283a..a4158e2 100644 > --- a/drivers/misc/pmic_max8997.c > +++ b/drivers/misc/pmic_max8997.c > @@ -42,3 +42,20 @@ int pmic_init(unsigned char bus) > > return 0; > } > + > +unsigned char max8997_reg_ldo(int uV) > +{ > + unsigned char ret; > + if (uV <= 800000) > + return 0; > + if (uV >= 3950000) > + return 0x3f; > + ret = (uV - 800000) / 50000; > + if (ret > 0x3f) { > + printf("MAX8997 LDO SETTING ERROR (%duV) -> %u\n", uV, ret); > + ret = 0x3f; > + } Can we get a comment to point at the doc that says what these values are? Maybe even a #define for the return values. -- Tom -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: Digital signature URL: