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Message-ID: <62c4a38b.1c69fb81.4d58e.ce99@mx.google.com>
Date: Tue, 5 Jul 2022 22:21:17 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Bjorn Andersson <bjorn.andersson@...aro.org>,
Andy Gross <agross@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 3/3] clk: qcom: lcc-ipq806x: convert to parent data
On Tue, Jun 21, 2022 at 11:43:10PM +0300, Dmitry Baryshkov wrote:
> On Tue, 21 Jun 2022 at 23:23, Christian Marangi <ansuelsmth@...il.com> wrote:
> >
> > On Tue, Jun 21, 2022 at 08:15:57PM +0300, Dmitry Baryshkov wrote:
> > > On Tue, 21 Jun 2022 at 19:33, Christian Marangi <ansuelsmth@...il.com> wrote:
> > > >
> > > > Convert lcc-ipq806x driver to parent_data API.
> > > >
> > > > Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> > > > ---
> > > > v2:
> > > > - Fix Sob tag
> > > >
> > > > drivers/clk/qcom/lcc-ipq806x.c | 79 +++++++++++++++++++---------------
> > > > 1 file changed, 44 insertions(+), 35 deletions(-)
> > > >
> > > > diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c
> > > > index ba90bebba597..c07ca8dc6e3a 100644
> > > > --- a/drivers/clk/qcom/lcc-ipq806x.c
> > > > +++ b/drivers/clk/qcom/lcc-ipq806x.c
> > > > @@ -24,6 +24,10 @@
> > > > #include "clk-regmap-mux.h"
> > > > #include "reset.h"
> > > >
> > > > +static const struct clk_parent_data gcc_pxo[] = {
> > > > + { .fw_name = "pxo", .name = "pxo" },
> > >
> > > I think you'd use .name = "pxo_board" here. You don't need to use the
> > > interim clock.
> > >
> >
> > In gcc and in the rest of this driver we use pxo. Wonder what is right?
>
> I'd use .fw_name = "pxo", .name = "pxo_board", like the rest of drivers do.
>
Will do the change, but I need an explaination... Is the use of
pxo_board correct?
I'm sending a patch that sets the pxo_board fixed clock in dts to output
"pxo". The only clock that still use pxo_board is rpm, everything else
at least for ipq806x use pxo and i'm sending a patch to use pxo for rpm.
Considering pxo is always present and pxo_board should be dropped
because every ipq806x driver use "pxo".
What is correct naming pxo or pxo_board? I assume pxo right?
> >
> > > > +};
> > > > +
> > > > static struct clk_pll pll4 = {
> > > > .l_reg = 0x4,
> > > > .m_reg = 0x8,
> > > > @@ -34,7 +38,7 @@ static struct clk_pll pll4 = {
> > > > .status_bit = 16,
> > > > .clkr.hw.init = &(struct clk_init_data){
> > > > .name = "pll4",
> > > > - .parent_names = (const char *[]){ "pxo" },
> > > > + .parent_data = gcc_pxo,
> > > > .num_parents = 1,
> > >
> > > Could you please either inline the gcc_pxo here (yes, it's ugly, but
> > > it works for small arrays) or use ARRAY_SIZE here.
> > >
> >
> > Yes will inline gcc_pxo.
> >
> > > > .ops = &clk_pll_ops,
> > > > },
> > > > @@ -64,9 +68,9 @@ static const struct parent_map lcc_pxo_pll4_map[] = {
> > > > { P_PLL4, 2 }
> > > > };
> > > >
> > > > -static const char * const lcc_pxo_pll4[] = {
> > > > - "pxo",
> > > > - "pll4_vote",
> > > > +static const struct clk_parent_data lcc_pxo_pll4[] = {
> > > > + { .fw_name = "pxo", .name = "pxo" },
> > > > + { .fw_name = "pll4_vote", .name = "pll4_vote" },
> > > > };
> > > >
> > > > static struct freq_tbl clk_tbl_aif_mi2s[] = {
> > > > @@ -131,18 +135,14 @@ static struct clk_rcg mi2s_osr_src = {
> > > > .enable_mask = BIT(9),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "mi2s_osr_src",
> > > > - .parent_names = lcc_pxo_pll4,
> > > > - .num_parents = 2,
> > > > + .parent_data = lcc_pxo_pll4,
> > > > + .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > > .ops = &clk_rcg_ops,
> > > > .flags = CLK_SET_RATE_GATE,
> > > > },
> > > > },
> > > > };
> > > >
> > > > -static const char * const lcc_mi2s_parents[] = {
> > > > - "mi2s_osr_src",
> > > > -};
> > > > -
> > > > static struct clk_branch mi2s_osr_clk = {
> > > > .halt_reg = 0x50,
> > > > .halt_bit = 1,
> > > > @@ -152,7 +152,9 @@ static struct clk_branch mi2s_osr_clk = {
> > > > .enable_mask = BIT(17),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "mi2s_osr_clk",
> > > > - .parent_names = lcc_mi2s_parents,
> > > > + .parent_hws = (const struct clk_hw*[]){
> > > > + &mi2s_osr_src.clkr.hw,
> > > > + },
> > > > .num_parents = 1,
> > > > .ops = &clk_branch_ops,
> > > > .flags = CLK_SET_RATE_PARENT,
> > > > @@ -167,7 +169,9 @@ static struct clk_regmap_div mi2s_div_clk = {
> > > > .clkr = {
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "mi2s_div_clk",
> > > > - .parent_names = lcc_mi2s_parents,
> > > > + .parent_hws = (const struct clk_hw*[]){
> > > > + &mi2s_osr_src.clkr.hw,
> > > > + },
> > > > .num_parents = 1,
> > > > .ops = &clk_regmap_div_ops,
> > > > },
> > > > @@ -183,7 +187,9 @@ static struct clk_branch mi2s_bit_div_clk = {
> > > > .enable_mask = BIT(15),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "mi2s_bit_div_clk",
> > > > - .parent_names = (const char *[]){ "mi2s_div_clk" },
> > > > + .parent_hws = (const struct clk_hw*[]){
> > > > + &mi2s_div_clk.clkr.hw,
> > > > + },
> > > > .num_parents = 1,
> > > > .ops = &clk_branch_ops,
> > > > .flags = CLK_SET_RATE_PARENT,
> > > > @@ -191,6 +197,10 @@ static struct clk_branch mi2s_bit_div_clk = {
> > > > },
> > > > };
> > > >
> > > > +static const struct clk_parent_data lcc_mi2s_bit_div_codec_clk[] = {
> > > > + { .hw = &mi2s_bit_div_clk.clkr.hw, },
> > > > + { .fw_name = "mi2s_codec_clk", .name = "mi2s_codec_clk" },
> > > > +};
> > > >
> > > > static struct clk_regmap_mux mi2s_bit_clk = {
> > > > .reg = 0x48,
> > > > @@ -199,11 +209,8 @@ static struct clk_regmap_mux mi2s_bit_clk = {
> > > > .clkr = {
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "mi2s_bit_clk",
> > > > - .parent_names = (const char *[]){
> > > > - "mi2s_bit_div_clk",
> > > > - "mi2s_codec_clk",
> > > > - },
> > > > - .num_parents = 2,
> > > > + .parent_data = lcc_mi2s_bit_div_codec_clk,
> > > > + .num_parents = ARRAY_SIZE(lcc_mi2s_bit_div_codec_clk),
> > > > .ops = &clk_regmap_mux_closest_ops,
> > > > .flags = CLK_SET_RATE_PARENT,
> > > > },
> > > > @@ -245,8 +252,8 @@ static struct clk_rcg pcm_src = {
> > > > .enable_mask = BIT(9),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "pcm_src",
> > > > - .parent_names = lcc_pxo_pll4,
> > > > - .num_parents = 2,
> > > > + .parent_data = lcc_pxo_pll4,
> > > > + .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > > .ops = &clk_rcg_ops,
> > > > .flags = CLK_SET_RATE_GATE,
> > > > },
> > > > @@ -262,7 +269,9 @@ static struct clk_branch pcm_clk_out = {
> > > > .enable_mask = BIT(11),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "pcm_clk_out",
> > > > - .parent_names = (const char *[]){ "pcm_src" },
> > > > + .parent_hws = (const struct clk_hw*[]){
> > > > + &pcm_src.clkr.hw,
> > > > + },
> > > > .num_parents = 1,
> > > > .ops = &clk_branch_ops,
> > > > .flags = CLK_SET_RATE_PARENT,
> > > > @@ -270,6 +279,11 @@ static struct clk_branch pcm_clk_out = {
> > > > },
> > > > };
> > > >
> > > > +static const struct clk_parent_data lcc_pcm_clk_out_codec_clk[] = {
> > > > + { .hw = &pcm_clk_out.clkr.hw, },
> > > > + { .fw_name = "pcm_codec_clk", .name = "pcm_codec_clk" },
> > > > +};
> > > > +
> > > > static struct clk_regmap_mux pcm_clk = {
> > > > .reg = 0x54,
> > > > .shift = 10,
> > > > @@ -277,11 +291,8 @@ static struct clk_regmap_mux pcm_clk = {
> > > > .clkr = {
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "pcm_clk",
> > > > - .parent_names = (const char *[]){
> > > > - "pcm_clk_out",
> > > > - "pcm_codec_clk",
> > > > - },
> > > > - .num_parents = 2,
> > > > + .parent_data = lcc_pcm_clk_out_codec_clk,
> > > > + .num_parents = ARRAY_SIZE(lcc_pcm_clk_out_codec_clk),
> > > > .ops = &clk_regmap_mux_closest_ops,
> > > > .flags = CLK_SET_RATE_PARENT,
> > > > },
> > > > @@ -325,18 +336,14 @@ static struct clk_rcg spdif_src = {
> > > > .enable_mask = BIT(9),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "spdif_src",
> > > > - .parent_names = lcc_pxo_pll4,
> > > > - .num_parents = 2,
> > > > + .parent_data = lcc_pxo_pll4,
> > > > + .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > > .ops = &clk_rcg_ops,
> > > > .flags = CLK_SET_RATE_GATE,
> > > > },
> > > > },
> > > > };
> > > >
> > > > -static const char * const lcc_spdif_parents[] = {
> > > > - "spdif_src",
> > > > -};
> > > > -
> > > > static struct clk_branch spdif_clk = {
> > > > .halt_reg = 0xd4,
> > > > .halt_bit = 1,
> > > > @@ -346,7 +353,9 @@ static struct clk_branch spdif_clk = {
> > > > .enable_mask = BIT(12),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "spdif_clk",
> > > > - .parent_names = lcc_spdif_parents,
> > > > + .parent_hws = (const struct clk_hw*[]){
> > > > + &spdif_src.clkr.hw,
> > > > + },
> > > > .num_parents = 1,
> > > > .ops = &clk_branch_ops,
> > > > .flags = CLK_SET_RATE_PARENT,
> > > > @@ -384,8 +393,8 @@ static struct clk_rcg ahbix_clk = {
> > > > .enable_mask = BIT(11),
> > > > .hw.init = &(struct clk_init_data){
> > > > .name = "ahbix",
> > > > - .parent_names = lcc_pxo_pll4,
> > > > - .num_parents = 2,
> > > > + .parent_data = lcc_pxo_pll4,
> > > > + .num_parents = ARRAY_SIZE(lcc_pxo_pll4),
> > > > .ops = &clk_rcg_lcc_ops,
> > > > },
> > > > },
> > > > --
> > > > 2.36.1
> > > >
> > >
> > >
> > > --
> > > With best wishes
> > > Dmitry
> >
> > --
> > Ansuel
>
>
>
> --
> With best wishes
> Dmitry
--
Ansuel
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