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Thu, 12 Nov 2020 14:10:52 +0000 (GMT) From: Sylwester Nawrocki To: georgi.djakov@linaro.org, cw00.choi@samsung.com, inki.dae@samsung.com Cc: krzk@kernel.org, devicetree@vger.kernel.org, robh+dt@kernel.org, a.swigon@samsung.com, myungjoo.ham@samsung.com, sw0312.kim@samsung.com, b.zolnierkie@samsung.com, m.szyprowski@samsung.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, s.nawrocki@samsung.com Subject: [PATCH v9 4/5] PM / devfreq: exynos-bus: Add registration of interconnect child device Date: Thu, 12 Nov 2020 15:09:30 +0100 Message-Id: <20201112140931.31139-5-s.nawrocki@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201112140931.31139-1-s.nawrocki@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrKKsWRmVeSWpSXmKPExsWy7djPc7q5TmvjDS4ct7C4P6+V0WLjjPWs Fte/PGe1mH/kHKvFla/v2Sym793EZjHp/gQWi/PnN7BbbHp8jdXi8q45bBafe48wWsw4v4/J Yu2Ru+wWtxtXsFm07j3CbnH4TTurxYzJL9kcBD02repk87hzbQ+bx/3u40wem5fUe/RtWcXo 8XmTXABbFJdNSmpOZllqkb5dAlfGr7332QoeCFbsn7GBuYHxCl8XIyeHhICJxIL3i1m6GLk4 hARWMEqcWLACyvnCKNHbtp0RwvnMKLG68TQTTMv3hpPsEInljBL7uhYwwbWs37GdBaSKTcBQ ovdoH1A7B4eIgKfEyQZ9kBpmgWZmiYbmTYwgNcICiRK3JjwHm8oioCrR8u4TG4jNK2AtcWD5 ZnaIbfISqzccYAaxOQVsJOY+bWUDGSQh8IZDYtXtF6wQRS4SB2bdYYGwhSVeHd8C1SwjcXpy DwtEQzOjRM/u2+wQzgRGifvHFzBCVFlL3Dn3iw3kVGYBTYn1u/Qhwo4Sb5o3s4KEJQT4JG68 FQQJMwOZk7ZNZ4YI80p0tAlBVKtI/F41HRpCUhLdT/6zQJR4SCy5kwkJn35GiXPr/jBPYJSf hbBrASPjKkbx1NLi3PTUYqO81HK94sTc4tK8dL3k/NxNjMCUdPrf8S87GJe/+qh3iJGJg/EQ owQHs5IIr7LDmngh3pTEyqrUovz4otKc1OJDjNIcLErivElbgFIC6YklqdmpqQWpRTBZJg5O qQam4p/Kq5W0G9Q+M01cGrFt2gKtjisHXxad2frGNH4b01WTt94FVk6ilhKWFyazri5mOesa v+Ttm4Nmb/1LX59qXlBZ4Hkn688Z9giTWsc3K6Sf/3N8mTx9d4fmLpkVJ6WPbTr75vTGF7Yp RjXL7PfwPGArDK2uFBLsjHUtOpu/6rL8H44FufZl/KrhBQJHLyfczYpZ9nv+GrbSL0XT/v06 HXJ8wccT1o6XLh9xeH7g7tmUcJ56Fa+JXzfKmGybFeXTO1N+Ue31rodP+FJefA/Zutl+oV+u ffe72/NTJMpzT/yvbHxfsJ9L9mxj+fm119IZHiU+5ZM9om7f35xRLd25by+bVsZJoQ3/DsuG SRxsV2Ipzkg01GIuKk4EAC+nHnO4AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmplkeLIzCtJLcpLzFFi42I5/e/4Pd1cp7XxBv9mSFvcn9fKaLFxxnpW i+tfnrNazD9yjtXiytf3bBbT925is5h0fwKLxfnzG9gtNj2+xmpxedccNovPvUcYLWac38dk sfbIXXaL240r2Cxa9x5htzj8pp3VYsbkl2wOgh6bVnWyedy5tofN4373cSaPzUvqPfq2rGL0 +LxJLoAtSs+mKL+0JFUhI7+4xFYp2tDCSM/Q0kLPyMRSz9DYPNbKyFRJ384mJTUnsyy1SN8u QS/j1977bAUPBCv2z9jA3MB4ha+LkZNDQsBE4nvDSfYuRi4OIYGljBL350xn7mLkAEpIScxv UYKoEZb4c62LDcQWEvjEKNHeIgJiswkYSvQe7WMEsUUEfCVWn5zEAjKHWWAys8Sj2y1gDcIC 8RL75pxhB7FZBFQlWt59AovzClhLHFi+mR1igbzE6g0HmEFsTgEbiblPW6GWWUvs725jmsDI t4CRYRWjSGppcW56brGRXnFibnFpXrpecn7uJkZgfGw79nPLDsaVrz7qHWJk4mA8xCjBwawk wqvssCZeiDclsbIqtSg/vqg0J7X4EKMp0B0TmaVEk/OBEZpXEm9oZmBqaGJmaWBqaWasJM5r cgSoSSA9sSQ1OzW1ILUIpo+Jg1OqgWl5+MrfJ6pvT1u5UehBzaWYexIxTLPM52pevrOU2ZW3 WaD9LTPbErdecae/919t3touLjrTd/6yNL76iPRPx1vtIz4XJetE7bK4/rRS7sYZtcwPfznq Z67cwd4weZ/ko7bza2Y4Fl8J8pzEaqivuWbO0dNu7dvzf76fdDxylbtspuQRVY0nG5/3C0V3 x1ROv1I/7/WRXQVp3vmW0UKLdP9YiLd3Zu7U67l+oV9FbKble63lT36s8HjlljSR6W0a87Zk 51KHwOs8+87/dr619biG7Zv95du+3Vn7wTq9Oen98qTdonNXr5j36eK3ZbH61ge6bgZt+/p+ x+KNq/ll3V/qLt3T4nWoZs4GOa6DM9zClViKMxINtZiLihMBWxn57hgDAAA= X-CMS-MailID: 20201112141053eucas1p1acf592a7ece14104a408b77afebb9eed X-Msg-Generator: CA X-RootMTR: 20201112141053eucas1p1acf592a7ece14104a408b77afebb9eed X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20201112141053eucas1p1acf592a7ece14104a408b77afebb9eed References: <20201112140931.31139-1-s.nawrocki@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org This patch adds registration of a child platform device for the exynos interconnect driver. It is assumed that the interconnect provider will only be needed when #interconnect-cells property is present in the bus DT node, hence the child device will be created only when such a property is present. Acked-by: Krzysztof Kozlowski Acked-by: Chanwoo Choi Signed-off-by: Sylwester Nawrocki --- Changes for v9: - whitespace (indentation) corrections. Changes for v8...v6: - none. Changes for v5: - new patch. --- drivers/devfreq/exynos-bus.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 1e684a4..20447a4 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -24,6 +24,7 @@ struct exynos_bus { struct device *dev; + struct platform_device *icc_pdev; struct devfreq *devfreq; struct devfreq_event_dev **edev; @@ -156,6 +157,8 @@ static void exynos_bus_exit(struct device *dev) if (ret < 0) dev_warn(dev, "failed to disable the devfreq-event devices\n"); + platform_device_unregister(bus->icc_pdev); + dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); if (bus->opp_table) { @@ -168,6 +171,8 @@ static void exynos_bus_passive_exit(struct device *dev) { struct exynos_bus *bus = dev_get_drvdata(dev); + platform_device_unregister(bus->icc_pdev); + dev_pm_opp_of_remove_table(dev); clk_disable_unprepare(bus->clk); } @@ -432,6 +437,18 @@ static int exynos_bus_probe(struct platform_device *pdev) if (ret < 0) goto err; + /* Create child platform device for the interconnect provider */ + if (of_get_property(dev->of_node, "#interconnect-cells", NULL)) { + bus->icc_pdev = platform_device_register_data( + dev, "exynos-generic-icc", + PLATFORM_DEVID_AUTO, NULL, 0); + + if (IS_ERR(bus->icc_pdev)) { + ret = PTR_ERR(bus->icc_pdev); + goto err; + } + } + max_state = bus->devfreq->profile->max_state; min_freq = (bus->devfreq->profile->freq_table[0] / 1000); max_freq = (bus->devfreq->profile->freq_table[max_state - 1] / 1000);