From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Armstrong Subject: Re: [PATCH 8/9] drm: meson: add macro used to enable HDMI PLL Date: Thu, 8 Aug 2019 16:10:49 +0200 Message-ID: <33b9572f-59cc-a72b-c517-e85df70e3f96@baylibre.com> References: <86zhm782g5.fsf@baylibre.com> <86o92n82e1.fsf@baylibre.com> <7hwohawoxu.fsf@baylibre.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <7hwohawoxu.fsf@baylibre.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Kevin Hilman , 86zhm782g5.fsf@baylibre.com Cc: linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Julien Masson List-Id: dri-devel@lists.freedesktop.org On 25/06/2019 01:20, Kevin Hilman wrote: > Julien Masson writes: > >> This patch add new macro HHI_HDMI_PLL_CNTL_EN which is used to enable >> HDMI PLL. >> >> Signed-off-by: Julien Masson >> --- >> drivers/gpu/drm/meson/meson_vclk.c | 3 ++- >> 1 file changed, 2 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/gpu/drm/meson/meson_vclk.c b/drivers/gpu/drm/meson/meson_vclk.c >> index e7c2b439d0f7..be6e152fc75a 100644 >> --- a/drivers/gpu/drm/meson/meson_vclk.c >> +++ b/drivers/gpu/drm/meson/meson_vclk.c >> @@ -96,6 +96,7 @@ >> #define HHI_VDAC_CNTL1 0x2F8 /* 0xbe offset in data sheet */ >> >> #define HHI_HDMI_PLL_CNTL 0x320 /* 0xc8 offset in data sheet */ >> +#define HHI_HDMI_PLL_CNTL_EN BIT(30) >> #define HHI_HDMI_PLL_CNTL2 0x324 /* 0xc9 offset in data sheet */ >> #define HHI_HDMI_PLL_CNTL3 0x328 /* 0xca offset in data sheet */ >> #define HHI_HDMI_PLL_CNTL4 0x32C /* 0xcb offset in data sheet */ >> @@ -468,7 +469,7 @@ void meson_hdmi_pll_set_params(struct meson_drm *priv, unsigned int m, >> >> /* Enable and unreset */ >> regmap_update_bits(priv->hhi, HHI_HDMI_PLL_CNTL, >> - 0x7 << 28, 0x4 << 28); >> + 0x7 << 28, HHI_HDMI_PLL_CNTL_EN); I'll do a pass on the PLL part since it needs much more work than a cleanup, it's ok for me. Neil > > still using a magic const for the mask. Can use GENMASK() for this? > > Kevin >