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Mon, 02 Mar 2020 13:31:09 -0800 Received: from [127.0.0.1] (helo=localhost) by xsj-pvapsmtp01 with smtp (Exim 4.63) (envelope-from ) id 1j8seW-0005hD-Fc; Mon, 02 Mar 2020 13:31:04 -0800 Received: from xsj-pvapsmtp01 (xsj-pvapsmtp01.xilinx.com [149.199.38.66]) by xsj-smtp-dlp1.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id 022LUxKl030793; Mon, 2 Mar 2020 13:31:00 -0800 Received: from [172.19.2.91] (helo=xsjjollys50.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1j8seR-0005dg-Rh; Mon, 02 Mar 2020 13:30:59 -0800 From: Jolly Shah To: olof@lixom.net, mturquette@baylibre.com, sboyd@codeaurora.org, michal.simek@xilinx.com, arm@kernel.org, linux-clk@vger.kernel.org Subject: [PATCH 2/2] drivers: clk: zynqmp: Update fraction clock check from custom type flags Date: Mon, 2 Mar 2020 13:30:43 -0800 Message-Id: <1583184643-19191-3-git-send-email-jolly.shah@xilinx.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1583184643-19191-1-git-send-email-jolly.shah@xilinx.com> References: <1583184643-19191-1-git-send-email-jolly.shah@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.2.0.1013-23620.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:149.199.60.83; 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Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB5416 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200302_133114_382654_A29FDB14 X-CRM114-Status: GOOD ( 11.14 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.237.71 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tejas Patel , Rajan Vaja , linux-kernel@vger.kernel.org, rajanv@xilinx.com, Jolly Shah , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Tejas Patel Older firmware version sets BIT(13) in clkflag to mark a divider as fractional divider. Updated firmware version sets BIT(4) in custom type flags to mark a divider as fractional divider since BIT(13) is defined as CLK_DUTY_CYCLE_PARENT in the common clk framework flags. To support both old and new firmware version, consider BIT(13) from clkflag and BIT(4) from type_flag to check if divider is fractional or not. To maintain compatibility BIT(13) of clkflag in firmware will not be used in future for any purpose and will be marked as unused. Signed-off-by: Tejas Patel Signed-off-by: Rajan Vaja Signed-off-by: Jolly Shah --- drivers/clk/zynqmp/divider.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c index 4be2cc7..973cdf0 100644 --- a/drivers/clk/zynqmp/divider.c +++ b/drivers/clk/zynqmp/divider.c @@ -25,7 +25,8 @@ #define to_zynqmp_clk_divider(_hw) \ container_of(_hw, struct zynqmp_clk_divider, hw) -#define CLK_FRAC BIT(13) /* has a fractional parent */ +#define CLK_FRAC BIT(13) /* has a fractional parent */ +#define CUSTOM_FLAG_CLK_FRAC BIT(4) /* has a fractional parent in custom type flag */ /** * struct zynqmp_clk_divider - adjustable divider clock @@ -311,7 +312,8 @@ struct clk_hw *zynqmp_clk_register_divider(const char *name, init.num_parents = 1; /* struct clk_divider assignments */ - div->is_frac = !!(nodes->flag & CLK_FRAC); + div->is_frac = !!((nodes->flag & CLK_FRAC) | + (nodes->custom_type_flag & CUSTOM_FLAG_CLK_FRAC)); div->flags = nodes->type_flag; div->hw.init = &init; div->clk_id = clk_id;