[PATCH v4 3/3] ARM: OMAP2+: onenand: prepare for gpmc driver migration
From: Jon Hunter <hidden>
Date: 2012-06-26 14:39:07
Also in:
linux-omap
Hi Afzal, On 06/26/2012 03:29 AM, Mohammed, Afzal wrote:
Hi Jon, On Mon, Jun 25, 2012 at 21:42:14, Hunter, Jon wrote:quoted
On 06/22/2012 04:01 AM, Afzal Mohammed wrote:quoted
quoted
+static int hf, vhf, sync_read, sync_write, latency;I am wondering if we can remove hf, vhf, sync_read/write variables completely. We already have flags from sync_read/write and so we could just use the cfg->flags variable and remove sync_read/write variables.For default frequency, sync_write can get turned off, so flag may or may not be same as sync_write
Good point. I missed that.
quoted
At the same time, we could create flags for ONENAND_FREQ_HF and ONENAND_FREQ_VHF or something like that. It could be nice to store the latency in onenand_data too. In other words, keep all the configuration in one place.I have a feeling as though platform data fields should not be altered once platform device is registered (as platform data being specific to the board, thinking further, should they be const?, except for a case where it is created by a common helper function for multiple boards with varying capabilities of peripheral). Other than sync_read, all others like hf, vhf, latency, sync_write are updated during driver callback, so if we are going to put these in platform private data fields, platform private data fields has to be updated after platform device is registered.
May be this is splitting hairs then but I wonder if we should just have a single global variable called onenand_flags for storing the current state of sync_read, sync_write, vhf and hf. At least this would be only one global instead of 4. Not a big deal. Cheers Jon