On 9/26/20 1:49 PM, Sam Ravnborg wrote:
Hi Alexandru
On Thu, Sep 24, 2020 at 03:05:05PM -0500, Alexandru Gagniuc wrote:
On the SII9022, the IOVCC and CVCC12 supplies must reach the correct
voltage before the reset sequence is initiated. On most boards, this
assumption is true at boot-up, so ini
Hi Alex.
On Mon, Sep 28, 2020 at 12:35:01PM -0500, Alex G. wrote:
> On 9/26/20 1:49 PM, Sam Ravnborg wrote:
> > Hi Alexandru
> >
> > On Thu, Sep 24, 2020 at 03:05:05PM -0500, Alexandru Gagniuc wrote:
> > > On the SII9022, the IOVCC and CVCC12 supplies must reach the correct
> > > voltage before t
Hi Alexandru
On Thu, Sep 24, 2020 at 03:05:05PM -0500, Alexandru Gagniuc wrote:
> On the SII9022, the IOVCC and CVCC12 supplies must reach the correct
> voltage before the reset sequence is initiated. On most boards, this
> assumption is true at boot-up, so initialization succeeds.
>
> However, w
Hi Alexandru,
url:
https://github.com/0day-ci/linux/commits/Alexandru-Gagniuc/drm-bridge-sii902x-Enable-I-O-and-core-VCC-supplies-if-present/20200925-041504
base: git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-m001-20200925 (attached as .config)
compiler: gc
On the SII9022, the IOVCC and CVCC12 supplies must reach the correct
voltage before the reset sequence is initiated. On most boards, this
assumption is true at boot-up, so initialization succeeds.
However, when we try to initialize the chip with incorrect supply
voltages, it will not respond to I2
On 9/24/20 3:22 PM, Fabio Estevam wrote:
Hi Fabio,
On Thu, Sep 24, 2020 at 5:16 PM Alexandru Gagniuc wrote:
+ ret = regulator_enable(sii902x->cvcc12);
+ if (ret < 0) {
+ dev_err(dev, "Failed to enable cvcc12 supply: %d\n", ret);
+ regulator_disable(sii9
Hi Alexandre,
On Thu, Sep 24, 2020 at 5:16 PM Alexandru Gagniuc wrote:
> + ret = regulator_enable(sii902x->cvcc12);
> + if (ret < 0) {
> + dev_err(dev, "Failed to enable cvcc12 supply: %d\n", ret);
> + regulator_disable(sii902x->iovcc);
> + r