Messages in this thread | | | Subject | Re: [PATCH] clk: meson: gxbb: fix wrong clock for SARADC/SANA | From | Jerome Brunet <> | Date | Mon, 06 Nov 2017 10:10:54 +0100 |
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On Mon, 2017-11-06 at 15:52 +0800, Yixun Lan wrote: > According to the datasheet, in Meson-GXBB/GXL series, > The clock gate bit for SARADC is HHI_GCLK_MPEG2 bit[22], > while clock gate bit for SANA is HHI_GCLK_MPEG0 bit[10]. > > Test passed at gxl_skt dev board. I think this refer to a board naming used in amlogic vendor kernel ? Would you mind telling what it is ?
> > Tested-by: Xingyu Chen <xingyu.chen@amlogic.com> > Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
Subject is missing "v2" tag and a reference to the previous message: 20171103181703.30434-1-yixun.lan@amlogic.com
> > --- > I think this error was introduced by a copy & paste from meson8 code? > and we didn't notice them due to the SANA clock is also enabled by > DTS (so SAR_ADC works fine)? > --- > drivers/clk/meson/gxbb.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c > index b2d1e8ed7152..92168348ffa6 100644 > --- a/drivers/clk/meson/gxbb.c > +++ b/drivers/clk/meson/gxbb.c > @@ -1139,7 +1139,7 @@ static MESON_GATE(gxbb_pl301, HHI_GCLK_MPEG0, 6); > static MESON_GATE(gxbb_periphs, HHI_GCLK_MPEG0, 7); > static MESON_GATE(gxbb_spicc, HHI_GCLK_MPEG0, 8); > static MESON_GATE(gxbb_i2c, HHI_GCLK_MPEG0, 9); > -static MESON_GATE(gxbb_sar_adc, HHI_GCLK_MPEG0, 10); > +static MESON_GATE(gxbb_sana, HHI_GCLK_MPEG0, 10); > static MESON_GATE(gxbb_smart_card, HHI_GCLK_MPEG0, 11); > static MESON_GATE(gxbb_rng0, HHI_GCLK_MPEG0, 12); > static MESON_GATE(gxbb_uart0, HHI_GCLK_MPEG0, 13); > @@ -1190,7 +1190,7 @@ static MESON_GATE(gxbb_usb0_ddr_bridge, HHI_GCLK_MPEG2, > 9); > static MESON_GATE(gxbb_mmc_pclk, HHI_GCLK_MPEG2, 11); > static MESON_GATE(gxbb_dvin, HHI_GCLK_MPEG2, 12); > static MESON_GATE(gxbb_uart2, HHI_GCLK_MPEG2, 15); > -static MESON_GATE(gxbb_sana, HHI_GCLK_MPEG2, 22); > +static MESON_GATE(gxbb_sar_adc, HHI_GCLK_MPEG2, 22);
The value currently used in the driver are with respect to the Datasheet of GXBB (v1.1.4) and GXL (S905X - V0.3-20170314), which are available to the public at http://http://linux-meson.com
the adc driver is claiming both clock, so this patch should not change anything to the adc operation.
* Is this patch fixing any issue ? * Is it an error in the published datasheets ?
> static MESON_GATE(gxbb_vpu_intr, HHI_GCLK_MPEG2, 25); > static MESON_GATE(gxbb_sec_ahb_ahb3_bridge, HHI_GCLK_MPEG2, 26); > static MESON_GATE(gxbb_clk81_a53, HHI_GCLK_MPEG2, 29);
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