Received-SPF: pass (google.com: domain of linux-kernel+bounces-138251-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249;
From: =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>
Date: Wed, 10 Apr 2024 11:29:06 +0200
Subject: [PATCH v3 3/9] spi: dt-bindings: cdns,qspi-nor: make
 cdns,fifo-depth optional
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 8bit
Message-Id: <20240410-cdns-qspi-mbly-v3-3-7b7053449cf7@bootlin.com>
References: <20240410-cdns-qspi-mbly-v3-0-7b7053449cf7@bootlin.com>
In-Reply-To: <20240410-cdns-qspi-mbly-v3-0-7b7053449cf7@bootlin.com>
To: Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>, Vaishnav Achath <vaishnav.a@ti.com>, 
 Thomas Bogendoerfer <tsbogend@alpha.franken.de>, 
 Rob Herring <robh@kernel.org>
Cc: linux-spi@vger.kernel.org, devicetree@vger.kernel.org, 
 linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, 
 Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>, 
 Gregory CLEMENT <gregory.clement@bootlin.com>, 
 Thomas Petazzoni <thomas.petazzoni@bootlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@mobileye.com>, 
 =?utf-8?q?Th=C3=A9o_Lebrun?= <theo.lebrun@bootlin.com>

Make cdns,fifo-depth devicetree property optional.
Value can be detected at runtime.

Upper SRAMPARTITION register bits are read-only. Procedure to find FIFO
depth is therefore to write 0xFFFFFFFF and read back to get amount of
writeable bits.

Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
---
 Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
index 587baf35e4e3..d48ecd6cd5ad 100644
--- a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
@@ -146,7 +146,6 @@ required:
   - reg
   - interrupts
   - clocks
-  - cdns,fifo-depth
   - cdns,fifo-width
   - cdns,trigger-address
   - '#address-cells'

-- 
2.44.0