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Date: Wed, 6 May 2015 15:59:40 +0200
From: Thierry Reding <thierry.reding@...il.com>
To: Rhyland Klein <rklein@...dia.com>
Cc: Benson Leung <bleung@...omium.org>,
Peter De Schrijver <pdeschrijver@...dia.com>,
Mike Turquette <mturquette@...aro.org>,
Stephen Warren <swarren@...dotorg.org>,
Stephen Boyd <sboyd@...eaurora.org>,
Alexandre Courbot <gnurou@...il.com>,
linux-clk@...r.kernel.org, linux-tegra@...r.kernel.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 02/20] clk: tegra: periph: add new periph clks and
muxes for Tegra210
On Tue, May 05, 2015 at 04:14:31PM -0400, Rhyland Klein wrote:
> On 5/4/2015 3:45 PM, Benson Leung wrote:
> > On Mon, May 4, 2015 at 9:37 AM, Rhyland Klein <rklein@...dia.com> wrote:
> >> Tegra210 has significant differences in muxes for peripheral clocks.
> >> One of the most important changes is that pll_m isn't to be used
> >> as a source for peripherals. Therefore, we need to define the new
> >> muxes and new clocks to use those muxes for Tegra210 support.
> >>
> >> Signed-off-by: Rhyland Klein <rklein@...dia.com>
> >> ---
> >> drivers/clk/tegra/clk-id.h | 57 +++++++-
> >> drivers/clk/tegra/clk-tegra-periph.c | 257 +++++++++++++++++++++++++++++++++-
> >> 2 files changed, 312 insertions(+), 2 deletions(-)
> >>
> >> diff --git a/drivers/clk/tegra/clk-id.h b/drivers/clk/tegra/clk-id.h
> >> index 60738cc954cb..ac6eaba5cc6e 100644
> >> --- a/drivers/clk/tegra/clk-id.h
> >> +++ b/drivers/clk/tegra/clk-id.h
> >> @@ -13,6 +13,7 @@ enum clk_id {
> >> tegra_clk_amx1,
> >> tegra_clk_apbdma,
> >> tegra_clk_apbif,
> >> + tegra_clk_ape,
> >> tegra_clk_audio0,
> >> tegra_clk_audio0_2x,
> >> tegra_clk_audio0_mux,
> >> @@ -38,6 +39,7 @@ enum clk_id {
> >> tegra_clk_cile,
> >> tegra_clk_clk_32k,
> >> tegra_clk_clk72Mhz,
> >> + tegra_clk_clk72Mhz_8,
> >> tegra_clk_clk_m,
> >> tegra_clk_clk_m_div2,
> >> tegra_clk_clk_m_div4,
> >> @@ -51,17 +53,21 @@ enum clk_id {
> >> tegra_clk_cml1,
> >> tegra_clk_csi,
> >> tegra_clk_csite,
> >> + tegra_clk_csite_8,
> >> tegra_clk_csus,
> >> tegra_clk_cve,
> >> tegra_clk_dam0,
> >> tegra_clk_dam1,
> >> tegra_clk_dam2,
> >> tegra_clk_d_audio,
> >> + tegra_clk_dbgapb,
> >> tegra_clk_dds,
> >> tegra_clk_dfll_ref,
> >> tegra_clk_dfll_soc,
> >> tegra_clk_disp1,
> >> + tegra_clk_disp1_8,
> >> tegra_clk_disp2,
> >> + tegra_clk_disp2_8,
> >> tegra_clk_dp2,
> >> tegra_clk_dpaux,
> >> tegra_clk_dsialp,
> >> @@ -71,6 +77,7 @@ enum clk_id {
> >> tegra_clk_dtv,
> >> tegra_clk_emc,
> >> tegra_clk_entropy,
> >> + tegra_clk_entropy_8,
> >> tegra_clk_epp,
> >> tegra_clk_epp_8,
> >> tegra_clk_extern1,
> >> @@ -85,12 +92,15 @@ enum clk_id {
> >> tegra_clk_gr3d_8,
> >> tegra_clk_hclk,
> >> tegra_clk_hda,
> >> + tegra_clk_hda_8,
> >> tegra_clk_hda2codec_2x,
> >> + tegra_clk_hda2codec_2x_8,
> >> tegra_clk_hda2hdmi,
> >> tegra_clk_hdmi,
> >> tegra_clk_hdmi_audio,
> >> tegra_clk_host1x,
> >> tegra_clk_host1x_8,
> >> + tegra_clk_host1x_9,
> >> tegra_clk_i2c1,
> >> tegra_clk_i2c2,
> >> tegra_clk_i2c3,
> >> @@ -110,11 +120,14 @@ enum clk_id {
> >> tegra_clk_i2s4_sync,
> >> tegra_clk_isp,
> >> tegra_clk_isp_8,
> >> + tegra_clk_isp_9,
> >> tegra_clk_ispb,
> >> tegra_clk_kbc,
> >> tegra_clk_kfuse,
> >> tegra_clk_la,
> >> + tegra_clk_maud,
> >> tegra_clk_mipi,
> >> + tegra_clk_mipibif,
> >> tegra_clk_mipi_cal,
> >> tegra_clk_mpe,
> >> tegra_clk_mselect,
> >> @@ -124,11 +137,16 @@ enum clk_id {
> >> tegra_clk_ndspeed,
> >> tegra_clk_ndspeed_8,
> >> tegra_clk_nor,
> >> + tegra_clk_nvdec,
> >> + tegra_clk_nvenc,
> >> + tegra_clk_nvjpg,
> >> tegra_clk_owr,
> >> + tegra_clk_owr_8,
> >> tegra_clk_pcie,
> >> tegra_clk_pclk,
> >> tegra_clk_pll_a,
> >> tegra_clk_pll_a_out0,
> >> + tegra_clk_pll_a1,
> >> tegra_clk_pll_c,
> >> tegra_clk_pll_c2,
> >> tegra_clk_pll_c3,
> >> @@ -140,8 +158,10 @@ enum clk_id {
> >> tegra_clk_pll_d_out0,
> >> tegra_clk_pll_dp,
> >> tegra_clk_pll_e_out0,
> >> + tegra_clk_pll_g_ref,
> >> tegra_clk_pll_m,
> >> tegra_clk_pll_m_out1,
> >> + tegra_clk_pll_mb,
> >> tegra_clk_pll_p,
> >> tegra_clk_pll_p_out1,
> >> tegra_clk_pll_p_out2,
> >> @@ -160,52 +180,77 @@ enum clk_id {
> >> tegra_clk_pll_x,
> >> tegra_clk_pll_x_out0,
> >> tegra_clk_pwm,
> >> + tegra_clk_qspi,
> >> tegra_clk_rtc,
> >> tegra_clk_sata,
> >> + tegra_clk_sata_8,
> >> tegra_clk_sata_cold,
> >> tegra_clk_sata_oob,
> >> + tegra_clk_sata_oob_8,
> >> tegra_clk_sbc1,
> >> tegra_clk_sbc1_8,
> >> + tegra_clk_sbc1_9,
> >> tegra_clk_sbc2,
> >> tegra_clk_sbc2_8,
> >> + tegra_clk_sbc2_9,
> >> tegra_clk_sbc3,
> >> tegra_clk_sbc3_8,
> >> + tegra_clk_sbc3_9,
> >> tegra_clk_sbc4,
> >> tegra_clk_sbc4_8,
> >> + tegra_clk_sbc4_9,
> >> tegra_clk_sbc5,
> >> tegra_clk_sbc5_8,
> >> tegra_clk_sbc6,
> >> tegra_clk_sbc6_8,
> >> tegra_clk_sclk,
> >> + tegra_clk_sdmmc_legacy,
> >> tegra_clk_sdmmc1,
> >> tegra_clk_sdmmc1_8,
> >> + tegra_clk_sdmmc1_9,
> >> tegra_clk_sdmmc2,
> >> tegra_clk_sdmmc2_8,
> >> + tegra_clk_sdmmc2_9,
> >> tegra_clk_sdmmc3,
> >> tegra_clk_sdmmc3_8,
> >> + tegra_clk_sdmmc3_9,
> >> tegra_clk_sdmmc4,
> >> tegra_clk_sdmmc4_8,
> >> + tegra_clk_sdmmc4_9,
> >> tegra_clk_se,
> >> tegra_clk_soc_therm,
> >> + tegra_clk_soc_therm_8,
> >> tegra_clk_sor0,
> >> tegra_clk_sor0_lvds,
> >> + tegra_clk_sor1,
> >> + tegra_clk_sor1_brick,
> >> + tegra_clk_sor1_src,
> >> tegra_clk_spdif,
> >> tegra_clk_spdif_2x,
> >> tegra_clk_spdif_in,
> >> + tegra_clk_spdif_in_8,
> >> tegra_clk_spdif_in_sync,
> >> tegra_clk_spdif_mux,
> >> tegra_clk_spdif_out,
> >> tegra_clk_timer,
> >> tegra_clk_trace,
> >> tegra_clk_tsec,
> >> + tegra_clk_tsec_8,
> >> + tegra_clk_tsecb,
> >> tegra_clk_tsensor,
> >> tegra_clk_tvdac,
> >> tegra_clk_tvo,
> >> tegra_clk_uarta,
> >> + tegra_clk_uarta_8,
> >> tegra_clk_uartb,
> >> + tegra_clk_uartb_8,
> >> tegra_clk_uartc,
> >> + tegra_clk_uartc_8,
> >> tegra_clk_uartd,
> >> + tegra_clk_uartd_8,
> >> tegra_clk_uarte,
> >> + tegra_clk_uarte_8,
> >> + tegra_clk_uartape,
> >> tegra_clk_usb2,
> >> tegra_clk_usb3,
> >> tegra_clk_usbd,
> >> @@ -216,22 +261,32 @@ enum clk_id {
> >> tegra_clk_vi,
> >> tegra_clk_vi_8,
> >> tegra_clk_vi_9,
> >> + tegra_clk_vi_10,
> >> + tegra_clk_vi_i2c,
> >> tegra_clk_vic03,
> >> + tegra_clk_vic03_8,
> >> tegra_clk_vim2_clk,
> >> tegra_clk_vimclk_sync,
> >> tegra_clk_vi_sensor,
> >> - tegra_clk_vi_sensor2,
> >> tegra_clk_vi_sensor_8,
> >> + tegra_clk_vi_sensor_9,
> >> + tegra_clk_vi_sensor2,
> >> + tegra_clk_vi_sensor2_8,
> >> tegra_clk_xusb_dev,
> >> tegra_clk_xusb_dev_src,
> >> + tegra_clk_xusb_dev_src_8,
> >> tegra_clk_xusb_falcon_src,
> >> + tegra_clk_xusb_falcon_src_8,
> >> tegra_clk_xusb_fs_src,
> >> tegra_clk_xusb_host,
> >> tegra_clk_xusb_host_src,
> >> + tegra_clk_xusb_host_src_8,
> >> tegra_clk_xusb_hs_src,
> >> tegra_clk_xusb_ss,
> >> tegra_clk_xusb_ss_src,
> >> + tegra_clk_xusb_ss_src_8,
> >> tegra_clk_xusb_ss_div2,
> >> + tegra_clk_sclk_mux,
> >> tegra_clk_max,
> >> };
> >>
> >> diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c
> >> index 46af9244ba74..bde7286bb16b 100644
> >> --- a/drivers/clk/tegra/clk-tegra-periph.c
> >> +++ b/drivers/clk/tegra/clk-tegra-periph.c
> >> @@ -125,6 +125,19 @@
> >> #define CLK_SOURCE_HDMI_AUDIO 0x668
> >> #define CLK_SOURCE_VIC03 0x678
> >> #define CLK_SOURCE_CLK72MHZ 0x66c
> >> +#define CLK_SOURCE_DBGAPB 0x718
> >> +#define CLK_SOURCE_NVENC 0x6a0
> >> +#define CLK_SOURCE_NVDEC 0x698
> >> +#define CLK_SOURCE_NVJPG 0x69c
> >> +#define CLK_SOURCE_APE 0x6c0
> >> +#define CLK_SOURCE_SOR1 0x410
> >> +#define CLK_SOURCE_SDMMC_LEGACY 0x694
> >> +#define CLK_SOURCE_QSPI 0x6c4
> >> +#define CLK_SOURCE_VI_I2C 0x6c8
> >> +#define CLK_SOURCE_MIPIBIF 0x660
> >> +#define CLK_SOURCE_UARTAPE 0x710
> >> +#define CLK_SOURCE_TSECB 0x6d8
> >> +#define CLK_SOURCE_MAUD 0x6d4
> >
> > It would be nice if this list was organized better. For example
> > CLK_SOURCE_SOR1, could be next to existing define of SOR0, and the
> > same for TSECB, the UARTAPE, and SDMMC_LEGACY.
> >
> > It's unfortunate that the list of clock sources is not sorted by name,
> > by offset value, nor by the way these show up in the TRM.
> >
>
> I'll make a cleanup patchset after this set lands to handle some things
> like sorting fields like the above, filling in missing kerneldocs for
> existing fields, etc...
I sent a patch to fix up the stale kerneldoc that Benson pointed out
before I read this, so hopefully you're going to see this before you
start working on that part.
Thierry
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