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[79.139.233.37]) by smtp.googlemail.com with ESMTPSA id k25sm8596603ljg.22.2019.11.28.05.07.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Nov 2019 05:07:56 -0800 (PST) Subject: Re: [PATCH v2 06/11] dt-bindings: clock: tegra: Remove pmc clock ids from clock dt-bindings To: Thierry Reding , Jon Hunter Cc: Sowjanya Komatineni , mperttunen@nvidia.com, gregkh@linuxfoundation.org, sboyd@kernel.org, tglx@linutronix.de, robh+dt@kernel.org, mark.rutland@arm.com, allison@lohutok.net, pdeschrijver@nvidia.com, pgaikwad@nvidia.com, mturquette@baylibre.com, horms+renesas@verge.net.au, Jisheng.Zhang@synaptics.com, krzk@kernel.org, arnd@arndb.de, spujar@nvidia.com, josephl@nvidia.com, vidyas@nvidia.com, daniel.lezcano@linaro.org, mmaddireddy@nvidia.com, markz@nvidia.com, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org References: <1574830773-14892-1-git-send-email-skomatineni@nvidia.com> <1574830773-14892-7-git-send-email-skomatineni@nvidia.com> <22ab4e93-bf94-5c73-b4b9-6cf36d329b97@gmail.com> <20191128121844.GA2300319@ulmo> From: Dmitry Osipenko Message-ID: Date: Thu, 28 Nov 2019 16:07:55 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191128121844.GA2300319@ulmo> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 28.11.2019 15:18, Thierry Reding пишет: > On Wed, Nov 27, 2019 at 05:32:30PM +0300, Dmitry Osipenko wrote: >> 27.11.2019 07:59, Sowjanya Komatineni пишет: >>> clk_out_1, clk_out_2, clk_out_3, blink are part of Tegra pmc clocks. >>> >>> This patch removes ids for these clocks from Tegra clock dt-bindings. >>> >>> Signed-off-by: Sowjanya Komatineni >>> --- >>> include/dt-bindings/clock/tegra114-car.h | 14 +++++++------- >>> include/dt-bindings/clock/tegra124-car-common.h | 14 +++++++------- >>> include/dt-bindings/clock/tegra20-car.h | 2 +- >>> include/dt-bindings/clock/tegra210-car.h | 14 +++++++------- >>> include/dt-bindings/clock/tegra30-car.h | 14 +++++++------- >>> 5 files changed, 29 insertions(+), 29 deletions(-) >>> >>> diff --git a/include/dt-bindings/clock/tegra114-car.h b/include/dt-bindings/clock/tegra114-car.h >>> index bb5c2c999c05..9175cd0571b5 100644 >>> --- a/include/dt-bindings/clock/tegra114-car.h >>> +++ b/include/dt-bindings/clock/tegra114-car.h >>> @@ -270,10 +270,10 @@ >>> #define TEGRA114_CLK_AUDIO3 242 >>> #define TEGRA114_CLK_AUDIO4 243 >>> #define TEGRA114_CLK_SPDIF 244 >>> -#define TEGRA114_CLK_CLK_OUT_1 245 >>> -#define TEGRA114_CLK_CLK_OUT_2 246 >>> -#define TEGRA114_CLK_CLK_OUT_3 247 >>> -#define TEGRA114_CLK_BLINK 248 >>> +/* 245 */ >>> +/* 246 */ >>> +/* 247 */ >>> +/* 248 */ >>> /* 249 */ >>> /* 250 */ >>> /* 251 */ >>> @@ -333,9 +333,9 @@ >>> #define TEGRA114_CLK_AUDIO3_MUX 303 >>> #define TEGRA114_CLK_AUDIO4_MUX 304 >>> #define TEGRA114_CLK_SPDIF_MUX 305 >>> -#define TEGRA114_CLK_CLK_OUT_1_MUX 306 >>> -#define TEGRA114_CLK_CLK_OUT_2_MUX 307 >>> -#define TEGRA114_CLK_CLK_OUT_3_MUX 308 >>> +/* 306 */ >>> +/* 307 */ >>> +/* 308 */ >>> #define TEGRA114_CLK_DSIA_MUX 309 >>> #define TEGRA114_CLK_DSIB_MUX 310 >>> #define TEGRA114_CLK_XUSB_SS_DIV2 311 >>> diff --git a/include/dt-bindings/clock/tegra124-car-common.h b/include/dt-bindings/clock/tegra124-car-common.h >>> index 0c4f5be0a742..90a0c5e7eb5f 100644 >>> --- a/include/dt-bindings/clock/tegra124-car-common.h >>> +++ b/include/dt-bindings/clock/tegra124-car-common.h >>> @@ -269,10 +269,10 @@ >>> #define TEGRA124_CLK_AUDIO3 242 >>> #define TEGRA124_CLK_AUDIO4 243 >>> #define TEGRA124_CLK_SPDIF 244 >>> -#define TEGRA124_CLK_CLK_OUT_1 245 >>> -#define TEGRA124_CLK_CLK_OUT_2 246 >>> -#define TEGRA124_CLK_CLK_OUT_3 247 >>> -#define TEGRA124_CLK_BLINK 248 >>> +/* 245 */ >>> +/* 246 */ >>> +/* 247 */ >>> +/* 248 */ >>> /* 249 */ >>> /* 250 */ >>> /* 251 */ >>> @@ -332,9 +332,9 @@ >>> #define TEGRA124_CLK_AUDIO3_MUX 303 >>> #define TEGRA124_CLK_AUDIO4_MUX 304 >>> #define TEGRA124_CLK_SPDIF_MUX 305 >>> -#define TEGRA124_CLK_CLK_OUT_1_MUX 306 >>> -#define TEGRA124_CLK_CLK_OUT_2_MUX 307 >>> -#define TEGRA124_CLK_CLK_OUT_3_MUX 308 >>> +/* 306 */ >>> +/* 307 */ >>> +/* 308 */ >>> /* 309 */ >>> /* 310 */ >>> #define TEGRA124_CLK_SOR0_LVDS 311 /* deprecated */ >>> diff --git a/include/dt-bindings/clock/tegra20-car.h b/include/dt-bindings/clock/tegra20-car.h >>> index b21a0eb32921..fe541f627965 100644 >>> --- a/include/dt-bindings/clock/tegra20-car.h >>> +++ b/include/dt-bindings/clock/tegra20-car.h >>> @@ -131,7 +131,7 @@ >>> #define TEGRA20_CLK_CCLK 108 >>> #define TEGRA20_CLK_HCLK 109 >>> #define TEGRA20_CLK_PCLK 110 >>> -#define TEGRA20_CLK_BLINK 111 >>> +/* 111 */ >>> #define TEGRA20_CLK_PLL_A 112 >>> #define TEGRA20_CLK_PLL_A_OUT0 113 >>> #define TEGRA20_CLK_PLL_C 114 >>> diff --git a/include/dt-bindings/clock/tegra210-car.h b/include/dt-bindings/clock/tegra210-car.h >>> index 44f60623f99b..a3d8d3e75728 100644 >>> --- a/include/dt-bindings/clock/tegra210-car.h >>> +++ b/include/dt-bindings/clock/tegra210-car.h >>> @@ -304,10 +304,10 @@ >>> #define TEGRA210_CLK_AUDIO3 274 >>> #define TEGRA210_CLK_AUDIO4 275 >>> #define TEGRA210_CLK_SPDIF 276 >>> -#define TEGRA210_CLK_CLK_OUT_1 277 >>> -#define TEGRA210_CLK_CLK_OUT_2 278 >>> -#define TEGRA210_CLK_CLK_OUT_3 279 >>> -#define TEGRA210_CLK_BLINK 280 >>> +/* 277 */ >>> +/* 278 */ >>> +/* 279 */ >>> +/* 280 */ >>> #define TEGRA210_CLK_SOR0_LVDS 281 /* deprecated */ >>> #define TEGRA210_CLK_SOR0_OUT 281 >>> #define TEGRA210_CLK_SOR1_OUT 282 >>> @@ -386,9 +386,9 @@ >>> #define TEGRA210_CLK_AUDIO3_MUX 353 >>> #define TEGRA210_CLK_AUDIO4_MUX 354 >>> #define TEGRA210_CLK_SPDIF_MUX 355 >>> -#define TEGRA210_CLK_CLK_OUT_1_MUX 356 >>> -#define TEGRA210_CLK_CLK_OUT_2_MUX 357 >>> -#define TEGRA210_CLK_CLK_OUT_3_MUX 358 >>> +/* 356 */ >>> +/* 357 */ >>> +/* 358 */ >>> #define TEGRA210_CLK_DSIA_MUX 359 >>> #define TEGRA210_CLK_DSIB_MUX 360 >>> /* 361 */ >>> diff --git a/include/dt-bindings/clock/tegra30-car.h b/include/dt-bindings/clock/tegra30-car.h >>> index 3c90f1535551..20ef2462d9e1 100644 >>> --- a/include/dt-bindings/clock/tegra30-car.h >>> +++ b/include/dt-bindings/clock/tegra30-car.h >>> @@ -230,11 +230,11 @@ >>> #define TEGRA30_CLK_AUDIO3 204 >>> #define TEGRA30_CLK_AUDIO4 205 >>> #define TEGRA30_CLK_SPDIF 206 >>> -#define TEGRA30_CLK_CLK_OUT_1 207 /* (extern1) */ >>> -#define TEGRA30_CLK_CLK_OUT_2 208 /* (extern2) */ >>> -#define TEGRA30_CLK_CLK_OUT_3 209 /* (extern3) */ >>> +/* 207 */ >>> +/* 208 */ >>> +/* 209 */ >>> #define TEGRA30_CLK_SCLK 210 >>> -#define TEGRA30_CLK_BLINK 211 >>> +/* 211 */ >>> #define TEGRA30_CLK_CCLK_G 212 >>> #define TEGRA30_CLK_CCLK_LP 213 >>> #define TEGRA30_CLK_TWD 214 >>> @@ -260,9 +260,9 @@ >>> /* 297 */ >>> /* 298 */ >>> /* 299 */ >>> -#define TEGRA30_CLK_CLK_OUT_1_MUX 300 >>> -#define TEGRA30_CLK_CLK_OUT_2_MUX 301 >>> -#define TEGRA30_CLK_CLK_OUT_3_MUX 302 >>> +/* 300 */ >>> +/* 301 */ >>> +/* 302 */ >>> #define TEGRA30_CLK_AUDIO0_MUX 303 >>> #define TEGRA30_CLK_AUDIO1_MUX 304 >>> #define TEGRA30_CLK_AUDIO2_MUX 305 >>> >> >> This a device-tree ABI breakage and I'm not sure that it's okay to break >> older device-trees (Pixel C Smaug board), maybe some kind of fallback is >> needed. > > The Smaug support was never really official. I don't think anybody uses > upstream on it "for real" because there's a very limited set of features > that we do support. My understanding is that there is a community around > Pixel C that runs their own forks with some more features and they have > occasionally upstreamed bits and pieces of that. > > So given how far behind we are with Smaug, I don't think breaking ABI > stability is really a problem in this case. > > Jon, we used to have a Smaug system in our internal upstream testing, > but that's no longer the case. If we ever were to reinstate that > testing, updating the DTB shouldn't be a problem, right? My recollection > is that updating the DTB was always done hand in hand with the kernel > update. IIRC, T210 doesn't have support for SoC audio driver yet in upstream kernel and thus Smaug only defined the audio codec in the device-tree, which never got utilized.