On Wed, 29 May 2019 at 23:29, Clément Péron <peron.clem@xxxxxxxxx> wrote: > > Hi, > > I have rebase my kernel on latest 5.2-rc2, and my panfrost driver is > no more probing. > > The issue is coming from f3617b449d0bcf3b5d80a97f51498dcf7463cf7e > drm/panfrost: Select devfreq > > Currently, there is some logic for the driver to work without devfreq. > However, the driver actually fails to probe if !CONFIG_PM_DEVFREQ. > > Fix this by selecting devfreq, and drop the additional checks > for devfreq. > > It seems that with this commit the OPP table is now mandatory. > is it intentional? Hi Clément, devfreq support is intentionally required. I got a H64 board which I'm using to add T720 support to Panfrost. Once I'm able to test the GPU properly along with frequency scaling, I will ping you so you can retest and resubmit. Thanks, Tomeu > Actually > [ 3.046237] panfrost 1800000.gpu: clock rate = 432000000 > [ 3.051593] panfrost 1800000.gpu: bus_clock rate = 100000000 > [ 3.096012] panfrost 1800000.gpu: mali-t720 id 0x720 major 0x1 > minor 0x1 status 0x0 > [ 3.103682] panfrost 1800000.gpu: features: 00000000,10309e40, > issues: 00000000,21054400 > [ 3.111789] panfrost 1800000.gpu: Features: L2:0x07110206 > Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002821 AS:0xf > JS:0x7 > [ 3.123435] panfrost 1800000.gpu: shader_present=0x3 l2_present=0x1 > [ 3.130405] panfrost 1800000.gpu: Fatal error during devfreq init > > With commit reverted > [ 3.038236] panfrost 1800000.gpu: clock rate = 432000000 > [ 3.043593] panfrost 1800000.gpu: bus_clock rate = 100000000 > [ 3.087994] panfrost 1800000.gpu: mali-t720 id 0x720 major 0x1 > minor 0x1 status 0x0 > [ 3.095658] panfrost 1800000.gpu: features: 00000000,10309e40, > issues: 00000000,21054400 > [ 3.103763] panfrost 1800000.gpu: Features: L2:0x07110206 > Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002821 AS:0xf > JS:0x7 > [ 3.115410] panfrost 1800000.gpu: shader_present=0x3 l2_present=0x1 > [ 3.122798] [drm] Initialized panfrost 1.0.0 20180908 for > 1800000.gpu on minor 0 > > > Thanks, > Clément > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
