From: Jernej Skrabec <jernej.skrabec@siol.net>
To: maxime.ripard@bootlin.com, wens@csie.org
Cc: robh+dt@kernel.org, mturquette@baylibre.com, sboyd@kernel.org,
airlied@linux.ie, architt@codeaurora.org, a.hajda@samsung.com,
Laurent.pinchart@ideasonboard.com, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-sunxi@googlegroups.com,
jernej.skrabec@siol.net
Subject: [PATCH v3 04/28] clk: sunxi-ng: h6: Set video PLLs limits
Date: Sun, 4 Nov 2018 19:26:41 +0100 [thread overview]
Message-ID: <20181104182705.18047-5-jernej.skrabec@siol.net> (raw)
In-Reply-To: <20181104182705.18047-1-jernej.skrabec@siol.net>
Video PLL factors can be set in a way that final PLL rate is outside
stable range. H6 user manual specifically says that N factor should not
be below 12. While it doesn't says anything about maximum stable rate, it
is clear that PLL doesn't work at 6.096 GHz (254 * 24 MHz).
Set minimum allowed PLL video rate to 288 MHz (12 * 24 MHz) and maximum
to 2.4 GHz, which is maximum in BSP driver.
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/clk/sunxi-ng/ccu-sun50i-h6.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
index 2193e1495086..19ff09f610e4 100644
--- a/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
+++ b/drivers/clk/sunxi-ng/ccu-sun50i-h6.c
@@ -120,6 +120,8 @@ static struct ccu_nm pll_video0_clk = {
.n = _SUNXI_CCU_MULT_MIN(8, 8, 12),
.m = _SUNXI_CCU_DIV(1, 1), /* input divider */
.fixed_post_div = 4,
+ .min_rate = 288000000,
+ .max_rate = 2400000000UL,
.common = {
.reg = 0x040,
.features = CCU_FEATURE_FIXED_POSTDIV,
@@ -136,6 +138,8 @@ static struct ccu_nm pll_video1_clk = {
.n = _SUNXI_CCU_MULT_MIN(8, 8, 12),
.m = _SUNXI_CCU_DIV(1, 1), /* input divider */
.fixed_post_div = 4,
+ .min_rate = 288000000,
+ .max_rate = 2400000000UL,
.common = {
.reg = 0x048,
.features = CCU_FEATURE_FIXED_POSTDIV,
--
2.19.1
next prev parent reply other threads:[~2018-11-04 18:27 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-04 18:26 [PATCH v3 00/28] Allwinner H6 DE3 and HDMI support Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 01/28] dt-bindings: bus: add H6 DE3 bus binding Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 02/28] clk: sunxi-ng: Adjust MP clock parent rate when allowed Jernej Skrabec
2019-01-10 9:15 ` [linux-sunxi] " Priit Laes
2019-01-10 17:10 ` Jernej Škrabec
2019-01-16 12:09 ` Priit Laes
2019-01-16 17:00 ` Jernej Škrabec
2019-01-17 7:24 ` Priit Laes
2019-01-18 21:51 ` Jernej Škrabec
2019-01-21 8:37 ` Priit Laes
2019-01-21 13:34 ` Priit Laes
2019-01-21 18:13 ` Jernej Škrabec
2019-03-19 10:34 ` Priit Laes
2018-11-04 18:26 ` [PATCH v3 03/28] clk: sunxi-ng: Use u64 for calculation of NM rate Jernej Skrabec
2018-11-04 18:26 ` Jernej Skrabec [this message]
2018-11-04 18:26 ` [PATCH v3 05/28] dt-bindings: clock: sun8i-de2: Add H6 DE3 clock description Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 06/28] clk: sunxi-ng: Add support for H6 DE3 clocks Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 07/28] dt-bindings: display: sun4i-drm: Add H6 display engine compatibles Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 08/28] drm/sun4i: Add compatible for H6 display engine Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 09/28] drm/sun4i: Rework DE2 register defines Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 10/28] drm/sun4i: Fix DE2 mixer size Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 11/28] drm/sun4i: Disable unused DE2 sub-engines Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 12/28] drm/sun4i: Add basic support for DE3 Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 13/28] drm/sun4i: Add support for H6 DE3 mixer 0 Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 14/28] drm/bridge/synopsys: dw-hdmi: Enable workaround for v2.12a Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 15/28] drm/sun4i: Not all DW HDMI controllers has scrambled addresses Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 16/28] drm/sun4i: dw-hdmi: Make mode_valid function configurable Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 17/28] drm/sun4i: dw-hdmi: Add quirk for setting TMDS clock Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 18/28] dt-bindings: display: sunxi: add DT binding for Allwinner H6 DW HDMI Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 19/28] drm/sun4i: Add support for H6 DW HDMI controller Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 20/28] drm/sun4i: dw-hdmi-phy: Reorder quirks by family Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 21/28] drm/sun4i: Add support for Synopsys HDMI PHY Jernej Skrabec
2018-11-04 18:26 ` [PATCH v3 22/28] drm/sun4i: Add support for H6 " Jernej Skrabec
2018-11-04 18:27 ` [PATCH v3 23/28] drm/sun4i: Initialize registers in tcon-top driver Jernej Skrabec
2018-11-04 18:27 ` [PATCH v3 24/28] drm: sun4i: add quirks for TCON TOP Jernej Skrabec
2018-11-04 18:27 ` [PATCH v3 25/28] dt-bindings: display: sun4i-drm: document H6 " Jernej Skrabec
2018-11-04 18:27 ` [PATCH v3 26/28] drm: sun4i: add support for " Jernej Skrabec
2018-11-04 18:27 ` [PATCH v3 27/28] arm64: dts: allwinner: h6: Add HDMI pipeline Jernej Skrabec
2018-11-04 18:27 ` [PATCH v3 28/28] arm64: dts: allwinner: h6: Enable HDMI output on Pine H64 board Jernej Skrabec
2018-11-05 9:43 ` [PATCH v3 00/28] Allwinner H6 DE3 and HDMI support Maxime Ripard
2018-11-06 15:54 ` Jernej Škrabec
2018-11-06 17:20 ` Jernej Škrabec
2018-11-07 9:44 ` Maxime Ripard
2018-12-03 18:09 ` Jernej Škrabec
2018-12-04 8:29 ` Maxime Ripard
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