linux-kernel - [PATCH v3 1/7] clk: bcm2835: remove pllb

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Message-Id: <20190611175839.28351-2-nsaenzjulienne@suse.de>
Date:   Tue, 11 Jun 2019 19:58:34 +0200
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     stefan.wahren@...e.com, Eric Anholt <eric@...olt.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com
Cc:     mbrugger@...e.de, viresh.kumar@...aro.org, rjw@...ysocki.net,
        sboyd@...nel.org, ptesarik@...e.com,
        linux-rpi-kernel@...ts.infradead.org, ssuloev@...altech.com,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        mturquette@...libre.com, linux-pm@...r.kernel.org,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/7] clk: bcm2835: remove pllb

Raspberry Pi's firmware controls this pll, we should use the firmware
interface to access it.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
Acked-by: Eric Anholt <eric@...olt.net>
---

Changes since v1:
  - Add comment to explain why pllb isn't there anymore

 drivers/clk/bcm/clk-bcm2835.c | 28 ++++------------------------
 1 file changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 770bb01f523e..867ae3c20041 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1651,30 +1651,10 @@ static const struct bcm2835_clk_desc clk_desc_array[] = {
 		.fixed_divider = 1,
 		.flags = CLK_SET_RATE_PARENT),
 
-	/* PLLB is used for the ARM's clock. */
-	[BCM2835_PLLB]		= REGISTER_PLL(
-		.name = "pllb",
-		.cm_ctrl_reg = CM_PLLB,
-		.a2w_ctrl_reg = A2W_PLLB_CTRL,
-		.frac_reg = A2W_PLLB_FRAC,
-		.ana_reg_base = A2W_PLLB_ANA0,
-		.reference_enable_mask = A2W_XOSC_CTRL_PLLB_ENABLE,
-		.lock_mask = CM_LOCK_FLOCKB,
-
-		.ana = &bcm2835_ana_default,
-
-		.min_rate = 600000000u,
-		.max_rate = 3000000000u,
-		.max_fb_rate = BCM2835_MAX_FB_RATE),
-	[BCM2835_PLLB_ARM]	= REGISTER_PLL_DIV(
-		.name = "pllb_arm",
-		.source_pll = "pllb",
-		.cm_reg = CM_PLLB,
-		.a2w_reg = A2W_PLLB_ARM,
-		.load_mask = CM_PLLB_LOADARM,
-		.hold_mask = CM_PLLB_HOLDARM,
-		.fixed_divider = 1,
-		.flags = CLK_SET_RATE_PARENT),
+	/*
+	 * PLLB is used for the ARM's clock. Controlled by firmware, see
+	 * clk-raspberrypi.c.
+	 */
 
 	/*
 	 * PLLC is the core PLL, used to drive the core VPU clock.
-- 
2.21.0