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Fri, 20 Dec 2019 00:18:00 +0000 (GMT) From: Chanwoo Choi To: robh+dt@kernel.org, krzk@kernel.org, heiko@sntech.de, leonard.crestez@nxp.com, lukasz.luba@arm.com Cc: mark.rutland@arm.com, a.swigon@samsung.com, m.szyprowski@samsung.com, kgene@kernel.org, cw00.choi@samsung.com, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org Subject: [PATCH v2 09/11] memory: samsung: exynos5422-dmc: Replace the deprecated 'devfreq-events' property Date: Fri, 20 Dec 2019 09:24:28 +0900 Message-Id: <20191220002430.11995-10-cw00.choi@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191220002430.11995-1-cw00.choi@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOJsWRmVeSWpSXmKPExsWy7bCmnq6F8J9Yg5UntC3uz2tltLj+5Tmr xfwj51gt/j96zWrR//g1s8X58xvYLc42vWG3WHH3I6vFpsfXWC0u75rDZvG59wijxacH/5kt Zpzfx2SxsKmF3WLtkbvsFkuvX2SyuN24gs2ide8RdgchjzXz1jB6bFrVyeaxeUm9x8Z3O5g8 +rasYvTYfm0es8fnTXIB7FHZNhmpiSmpRQqpecn5KZl56bZK3sHxzvGmZgaGuoaWFuZKCnmJ uam2Si4+AbpumTlAbygplCXmlAKFAhKLi5X07WyK8ktLUhUy8otLbJVSC1JyCiwL9IoTc4tL 89L1kvNzrQwNDIxMgQoTsjPutaxlKZgmWDHrwmH2BsaFfF2MnBwSAiYSMz9uY+xi5OIQEtjB KDGlaxs7SEJI4BOjxKXpcV2MHED2N0aJbSww9Utbv7FA1O9llJj17z1U8xdGiX3fLrOCVLEJ aEnsf3GDDcQWEciQmPkaJM7FwSzwkUmia9tdNpCpwgK5Ej0bDEFqWARUJVpm72YGsXkFrCUu /17ACrFNXmL1hgNgcU6g+JZnD9lB5kgINLNLtH7uYYIocpF4u2QDVIOwxKvjW9ghbCmJz+/2 skHY1RIrTx5hg2juYJTYsv8CVIOxxP6lk5lADmIW0JRYv0sfIqwosfP3XEYQm1mAT+Ld1x5W kBIJAV6JjjYhiBJlicsP7kKdICmxuL0TapWHxJ1Xc1kggdjHKLHmtcAERrlZCAsWMDKuYhRL LSjOTU8tNiwwQo6vTYzgRKpltoNx0TmfQ4wCHIxKPLwOab9jhVgTy4orcw8xSnAwK4nw3u74 GSvEm5JYWZValB9fVJqTWnyI0RQYkhOZpUST84FJPq8k3tDUyNjY2MLE0MzU0FBJnJfjx8VY IYH0xJLU7NTUgtQimD4mDk6pBsYpW6/6H+CUdenkEto9Y/HWwBdPL90LeZpkINSQUGeqvMZW aKdH68GdGe9nd7mqvmBQNqiTLhXo17GdI/dI951PfOuMtpkJ+bbyrZzxSYsSORPzD5q/ftv+ etuk5I+9n1MypN1cdpVOzqhNakhtlbXovZG1UrpOp8e1+s6TPT36IpkSH78pKbEUZyQaajEX FScCAK/aE+O6AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrCLMWRmVeSWpSXmKPExsWy7bCSnK6F8J9Yg+WtEhb357UyWlz/8pzV Yv6Rc6wW/x+9ZrXof/ya2eL8+Q3sFmeb3rBbrLj7kdVi0+NrrBaXd81hs/jce4TR4tOD/8wW M87vY7JY2NTCbrH2yF12i6XXLzJZ3G5cwWbRuvcIu4OQx5p5axg9Nq3qZPPYvKTeY+O7HUwe fVtWMXpsvzaP2ePzJrkA9igum5TUnMyy1CJ9uwSujHsta1kKpglWzLpwmL2BcSFfFyMnh4SA icTS1m8sXYxcHEICuxklzi19zQiRkJSYdvEocxcjB5AtLHH4cDFEzSdGiemz9rOD1LAJaEns f3GDDcQWEciT2LTxKzNIEbPAfyaJ7ycfgA0SFsiWmDxrDiuIzSKgKtEyezcziM0rYC1x+fcC Vohl8hKrNxwAi3MCxbc8ewi2QEjASuLl+QusExj5FjAyrGKUTC0ozk3PLTYsMMpLLdcrTswt Ls1L10vOz93ECA57La0djCdOxB9iFOBgVOLhdUj7HSvEmlhWXJl7iFGCg1lJhPd2x89YId6U xMqq1KL8+KLSnNTiQ4zSHCxK4rzy+ccihQTSE0tSs1NTC1KLYLJMHJxSDYyldcfl5vD+Ml67 0fJeR+Ld3GsGrb1tvi0nuqSdXs6aNfu1Usq1B5J7GK7/WTqHb61bjDyrS5Bp6mmbUq0Vl3/u +HpdalnSj2pWc9MFNe1urz8os3IsnjfReM0S9bMmjPHHGG8w2kZvXa6uHXXNtvmF49cO3Tzx E1OFj8w6Lnkzb0b4DyFvdU4lluKMREMt5qLiRAAiFaEvdwIAAA== X-CMS-MailID: 20191220001800epcas1p41ab059757aeec99060cb4f47b0f48ac0 X-Msg-Generator: CA X-Sendblock-Type: SVC_REQ_APPROVE CMS-TYPE: 101P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20191220001800epcas1p41ab059757aeec99060cb4f47b0f48ac0 References: <20191220002430.11995-1-cw00.choi@samsung.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Replace the deprecated 'devfreq-events' property with 'exynos,ppmu-device' property. But, to guarantee the backward-compatibility, keep the support of 'devfreq-events' property. Reviewed-by: Lukasz Luba Signed-off-by: Chanwoo Choi --- drivers/memory/samsung/exynos5422-dmc.c | 29 ++++++++++++++++++++----- 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsung/exynos5422-dmc.c index f11fe29a69fc..6e8aa19e84d3 100644 --- a/drivers/memory/samsung/exynos5422-dmc.c +++ b/drivers/memory/samsung/exynos5422-dmc.c @@ -1270,10 +1270,17 @@ static int exynos5_dmc_init_clks(struct exynos5_dmc *dmc) static struct devfreq_event_dev *exynos5_dmc_get_edev(struct device_node *np, int index) { - struct device_node *node = of_parse_phandle(np, "devfreq-events", + struct device_node *node = of_parse_phandle(np, "exynos,ppmu-device", index); - if (!node) - return ERR_PTR(-ENODEV); + if (!node) { + /* + * Check the deprecated 'devfreq-events' property + * to support backward-compatibility. + */ + node = of_parse_phandle(np, "devfreq-events", index); + if (!node) + return ERR_PTR(-ENODEV); + } return devfreq_event_get_edev_by_node(node); } @@ -1292,10 +1299,20 @@ static int exynos5_performance_counters_init(struct exynos5_dmc *dmc) int ret, i; dmc->num_counters = of_property_count_elems_of_size(dmc->dev->of_node, - "devfreq-events", sizeof(u32)); + "exynos,ppmu-device", sizeof(u32)); if (dmc->num_counters < 0) { - dev_err(dmc->dev, "could not get devfreq-event counters\n"); - return dmc->num_counters; + /* + * Check the deprecated 'devfreq-events' property + * to support backward-compatibility. + */ + dmc->num_counters = of_property_count_elems_of_size( + dmc->dev->of_node, + "devfreq-events", sizeof(u32)); + if (dmc->num_counters < 0) { + dev_err(dmc->dev, + "could not get devfreq-event counters\n"); + return dmc->num_counters; + } } counters_size = sizeof(struct devfreq_event_dev) * dmc->num_counters;